Wednesday, April 4, 2012

Hacking Windows XP Registry

Structure of Windows XP Registry :

When you will open the Windows XP Registry , you will see it's divided into two panes. On the left side there are Five main
Keys as shown below. These can be expanded to several Sub-Keys, which further has many Sub-Keys.

+HKEY_CLASSES_ROOT

+HKEY_CURRENT_USER

+HKEY_LOCAL_MACHINE

+HKEY_USERS

+HKEY_CURRENT_CONFIG







Before you try out the Tweaks, learn how to Backup and Restore Windows XP Registry.
Types of Registry Backups :
It?s very important that before you do editing you make a backup of the current registry. If you ignore this warning, it might prove deadly for you?so better listen to me J
Open your registry. Go to Start>Run , type regedit . When you invoke the Export function from File>Export, you are given a choice of different file types that can be saved :
Registration Files (*.reg)
Registry Hive Files (*.*)
Text Files (*.txt)
Win9x/NT 4 Registration Files (*.reg)
All Files

Each one of the different file types above plays an important role in how the data you export is saved. Choosing the wrong type can give you unexpected results. So let me explain you quickly these file types.

Registrations Files : The Registration Files option creates a .reg file. This is the most well known file format used for backing up the registry. The Registration File can be used in two ways. As a text file it can be read and edited using Notepad outside of Registry Editor. Once the changes have been made and saved, right clicking the file and using the [Merge] command adds the changed file back into the registry. If you make additions to the registry using regedit and then merge the previously saved Registration File, anything that you've added via regedit will not be removed, but changes you make to data using regedit that previously existed in the saved Registration File will be overwritten when it is merged

Registry Hive Files : Unlike the Registration Files option above, the Registry Hive Files option creates a binary image of the selected registry key. The image file is not editable via Notepad nor can you view its contents using a text editor. However, what the Registry Hive Files format does is create an image perfect view of the selected key and allow you to import it back into the registry to insure any problematic changes you made are eliminated.

Text Files : This option does just as the name suggests. It creates a text file containing the information in the selected key. It's most useful purpose is creating a record or snapshot of a key at a particular point in time that you can refer back to if necessary. It cannot be merged back into the registry like a Registration File.

Win9x/NT 4 Registration Files : This option creates a .reg file in the same manner used by the Registration Files option. It's used by previous Windows versions and serves no purpose in XP unless you want to merge a key from XP into a previous version of Windows.

Out of the give above choices , the safest method of backing up registry is to use Registry Hive Files option. No matter what ever you do or goes wrong in editing, importing the image of the key will eliminate all changes.

**Note-> I have included the exact name/value between [ ] brackets. [ & ] should be ignored, only the data inside them should be considered.



1. Customize Windows Media Player Title Bar

Change the title bar to read Windows Media Player provided by <your text>, so if I had entered text ?Abhishek Bhuyan? , it would read: Windows Media Player provided by Abhishek Bhuyan

[Start] [Run] [Regedit]

Go to HKEY_CURRENT_USER\Software\Policies\Microsoft
Create the Key [WindowsMediaPlayer]
Create String value named [TitleBar]

Data Type: REG_SZ // Value Name: TitleBar
Double click TitleBar and Enter the text to be displayed in the title bar.

Exit Registry / Reboot

2. Minimize Outlook 2002 to the System Tray

If you frequently access Outlook during the day it?s more convenient to have it minimized to the system tray rather than invoking it each time you need to send/receive e-mail. This tweak minimizes Outlook 2002 to the system tray:

[Start] [Run] [Regedit]

Go to HKEY_CURRENT_USER\Software\Microsoft\Office\10.0\Outlook\Preferences

Modify/Create Data Type DWORD named [MinToTray]
Setting for Value Data: [0 = Disabled / 1 = Enabled]

Exit Registry / Reboot

3. Specify Default IE Download Directory

This tweak changes the default directory where downloads initiated in Internet Explorer are stored on the system.

[Start] [Run] [Regedit]

Go to HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer

Modify/Create String Value of Data type REG_SZ Named [Download Directory]
Value Data: [Enter Path to Directory to be Assigned as Defualt for Downloads]

Exit Registry / Reboot

4. Force Use of Classic Start Menu

This tweak loads the Classic Start Menu and makes it impossible to change back to the Windows XP version

[Start] [Run] [Regedit]

Go to HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer

Modify/Create the DWORD Value of Data type REG_DWORD Named [NoSimpleStartMenu]
Value Data: [0 = Default / 1 = Force Classic Start Menu]

Exit Registry / Reboot

5. Hide/Show Internet Explorer Desktop Icon

By default, Windows XP does not show the Internet Explorer icon on the Windows desktop. Using the registry tweak below allows you to control whether or not the Internet Explorer icon is displayed.

[Start] [Run] [Regedit]

Go to HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer

Modify/Create DWORD Value of Data type REG_DWORD Named [NoInternetIcon]
Setting for Value Data: [0 = Disabled / 1 = Enabled]

Exit Registry / Reboot

6. Increase Menu Display Speed

When you click on the Start Menu there is some delay to display the contents , just for no reason. Effects are pretty though. The default speed can be adjusted with a quick registry entry.

The default value is 400. Set it to 0 and the delay is gone. If you are not able to adjust pick a number that suits your style and make the change.

[Start] [Run] [Regedit]

Go to HKEY_CURRENT_USER\Control Panel\Desktop

Modify/Create String value of Data type REG_SZ Named [MenuShowDelay]

Value Data: [Default = 400 / Adjust to Preference]

Exit Registry / Reboot

7. Change the Location of Special Folders

This tweak allows changing the location of special folders on the system. Any of the folders listed in the registry key may be moved.

[Start] [Run] [Regedit]

Go to : HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\UserShell Folders

Modify/Create String value of Data type REG_SZ Named [Various Folder Names]

Data Type: REG_SZ [String Value] // Value Name: Consult RegEdit for Folder Names

Value Data: [Move the folder to the new desired location using explorer, and then edit the matching folder in RegEdit to reflect the new folder location]

Exit Registry and Reboot

8. Faster Browsing in Windows Explorer on Network Computers

By default, a Windows XP machine connecting to a Windows 95/98/Me computer will search for scheduled tasks or enabled printers on the remote computer. Two sub-keys control this behavior. Deleting them will speed up browsing on the remote computer.

[Start] [Run] [Regedit]

Go to : HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Explorer\RemoteComputer\NameSpace

To Disable Scheduled Task Checking
Value Name: {D6277990-4C6A-11CF-8D87-00AA0060F5BF}
Delete the sub-key in the left pane of Registry Editor

To Disable Printer Checking
Value Name: {2227A280-3AEA-1069-A2DE-08002B30309D}
Delete the sub-key in the left pane of Registry Editor

Exit Registry / Reboot

9. Add Administrator Account to Log In Screen

When Windows XP is first installed it requires you to enter at least one name of a user who will access the computer. Once you create this name the default Administrator account vanishes. To access it, press Ctrl-Alt-Delete twice at the Welcome screen to retrieve the standard Windows 2000 logon dialog. Log on as Administrator from this point. To log the Administrator off, click [Start] [Log Off] and [Log Off] when the [Log Off Windows] selection box appears. The Log On screen with the available users will be displayed.

To Make the Administrator Account Always Visible on the Login Screen use this Registry Tweak.

[Start] [Run] [Regedit]

Go to: HKEY_LOCALMACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\SpecialAccounts\UserList

Modify/Create DWORD Value of Data type REG_DWORD Named [Administrator]
Setting for Value Data: [0 = Disabled / 1 = Enabled]

Exit Registry / Reboot

10. Increase Internet Download Connections

Increase Simultaneous Internet Download Connections. Increases the number of allowed simultaneous connections to ten (10).

[Start] [Run] [Regedit]

Go to: HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings

Modify/Create DWORD Value of Data type REG_DWORD Named [MaxConnectionsPer1_0Server]
Setting for Value Data: [0000000a]

Modify/Create DWORD Value of Data type REG_DWORD Named [MaxConnectionsPerServer]
Setting for Value Data: [0000000a]

Exit Registry / Reboot


11. Connected Web Files and Folders

Connecting web files and folders allows a primary .htm or .html file to be moved in conjunction with files associated with the primary document. Once the primary document has been defined, create a sub-folder using the same name as the primary document but assign it a .files extension. Whenever the primary file is moved, the sub-folder will also move and remain as a sub-folder of the primary.

[Start] [Run] [Regedit]

Go to: HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer

Modify/Create DWORD Value of Data type REG_DWORD Named [NoFileFolderConnection]
Setting for Value Data: [0 = Enabled (Default) / 1 = Disabled]

Exit Registry / Reboot

12. Hide/Show My Documents Folder on Desktop

By default, Windows XP does not show the My Documents folder on the Windows desktop. Using the registry tweak below allows you to control whether or not My Documents is displayed.

[Start] [Run] [Regedit]

Go to: HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\CLSID\{450D8FBA-AD25-11D0-98A8-0800361B1103}\ShellFolder

Modify/Create DWORD Value of Data type REG_DWORD Named [Attributes]
Setting for Value Data: [Default = 0xf0400174 / Hidden = 0xf0500174]

Exit Registry / Reboot

13. Create a Hidden User Account

This tweak allows an account that is normally displayed on the Welcome screen to be hidden from view. To log on using the account it's necessary to use the Log On To Windows dialog box similar to the one in Windows 2000 i.e. press CTRL+ALT+DEL twice.

[Start] [Run] [Regedit]

Go to: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\WindowsNT\CurrentVersion\Winlogon\SpecialAccounts\UserList

Modify/Create DWORD Value of Data type REG_DWORD Named [Type Name of Account to be Hidden]
Setting for Value Data: [0 = Account is Hidden / 1 = Enabled]

Exit Registry / Reboot

While the account is hidden on the Welcome screen, note that the account profile will be visible in C:\Documents and Settings or wherever user profiles are stored as well as in Local Users and Groups.

14. Create Legal Notice Logon Dialog Box

In situations where you need users to read a legal notice before logging on, this tweak will create the caption for the notice.

Start] [Run] [Regedit]

Go to: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon

Modify/Create String Value of Data type REG_SZ Named [LegalNoticeCaption]
Value Data for LegalNoticeCaption: [Type the Caption for the Dialog Box]

Modify/Create String Value of Data type REG_SZ Named [LegalNoticeText]
Value Data for LegalNoticeText: [Type the Data for the Legal Notice]

Exit Registry / Reboot

15. Manage Internet Explorer Error Reporting

This tweak removes the IE Error Reporting tool from appearing with the option to send browser debugging reports to Microsoft.

[Start] [Run] [Regedit]

Go to: HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Explorer\Main

Note:- Create both values listed below and set according to the bold type for the tweak to function properly.

Modify/Create DWORD Value of Data type REG_DWORD Named [IEWatsonEnabled]
Value Data: [0 - Disabled / 1 - Enabled]

Modify/Create DWORD Value of Data type REG_DWORD Named [IEWatsonDisabled]
Value Data: [0 - Disabled / 1 - Enabled]

Exit Registry / Reboot

16. Customize Logon and Security Dialog Title

[Start] [Run] [Regedit]

Go to: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\ CurrentVersion\Winlogon

Modify/Create String Value of Data type REG_SZ Named [Welcome]
Value Data: [0 = Disabled / 1 = Enabled]

Exit Registry / Reboot

17. Customize Logon Box Message

This is the message displayed on the Classic Logon box, not the XP ?Welcome? logon screen

[Start] [Run] [Regedit]

Go to: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\ CurrentVersion\Winlogon

Modify/Create String Value of Data type REG_SZ Named [LogonPrompt]
Value Data: [Enter the text of the message]

Exit Registry / Reboot

18. Welcome Screen Logon Vs Classic Logon

This tweak specifies whether the Welcome screen or the Classic logon will be used to access Windows XP.

[Start] [Run] [Regedit]

Go to: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon

Modify/Create DWORD Value of Data type REG_DWORD Named [LogonType]
Value Data: [0 - Classic Mode / 1 - Welcome Screen]

Exit Registry / Reboot

19. QoS (Quality Of Service) Bandwidth Reserve Setting

By default, Windows XP reserves 20% of the connection bandwidth for QoS traffic. This tweak allows the setting to be altered to a different percentage of connection bandwidth. If the system uses more than a single adapter for network connections, each adapter may be set individually by navigating to:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Psched\Parameters\Adapters\{Adpater-ID} rather than HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\Psched

[Start] [Run] [Regedit]

Go to: HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\Psched

Modify/Create DWORD Value of Data type REG_DWORD Named [NonBestEffortLimit]
Setting for Value Data: [Enter as a Percentage / Default Value = 20]

Exit Registry / Reboot

20. Enable/Disable Save Password in DUN

This tweak saves user passwords for Dial Up Networking so they do not have to be re-entered each session.

[Start] [Run] [Regedit]

Go to: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\RasMan\Parameters

Modify/Create DWORD Value of Data type REG_DWORD Named [DisableSavePassword]
Setting for Value Data: [0 = Disabled (Passwords Saved) / 1 = Enabled (Passwords Not Saved)]

Exit Registry / Reboot

21. Change the Registered Organization/Owner of Windows XP

This tweak allows modification of the registered owner and organization of the Windows XP software.

Note:- This tweak has nothing to do with Windows Product Activation (WPA) and will not allow you to register illegal XP software.

[Start] [Run] [Regedit]

Go to: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion

Modify/Create String Value of Data type REG_SZ Named [RegisteredOrganization] or [RegisteredOwner]
Setting for Value Data: [Modify the Values to Reflect Current Information]

Exit Registry / Reboot

22. Remove Links Folder in Favorites

The Links folder is part of Favorites whether it's being accessed through Internet Explorer or the Favorites menu in the Start Menu. This tweak will remove it from those locations.

[Start] [Run] [Regedit]

Go to: HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Toolbar

Modify/Create String Value of Data type REG_SZ Named [LinksFolderName]
Value Data: [Set the String Value to a blank string]

Open Internet Explorer and manually delete the Links folder from Favorites Menu.
The Links folder will not be recreated.

Exit Registry / Reboot

23. Enable/Disable Active Window Tracking to Mouse Movements

When the mouse is moved over an open window it automatically sets the focus to that particular window. It does not bring the window to the foreground of the open windows.

[Start] [Run] [Regedit]

Go to: HKEY_CURRENT_USER\Control Panel\Mouse

Modify/Create DWORD Value of Data type REG_DWORD Named [ActiveWindowTracking]
Setting for Value Data: [0 = ActiveWindowTracking Disabled / 1 = ActiveWindowTracking Enabled]

Exit Registry / Reboot

24. Auto Disconnect for Internet Explorer

Use this edit to automatically disconnect from Internet Explorer after a specified length of time has elapsed. Use this trick on anyone whom you don?t like using your computer with net J

[Start] [Run] [Regedit]

Go to: HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\LanmanServer\Parameters

Modify/Create DWORD Value of Data type REG_DWORD Named [Autodisconnect]
Value Data: [Enter a new disconnect time. Use Hexadecimal if you are unfamiliar with Binary]

Exit Registry / Reboot

25. Auto Reboot on System Crash

By default, when the Windows XP operating system crashes an automatic reboot of the system occurs. While this behavior can be convenient, the downside is the error message accompanying the crash is not visible. Often times this information can be a great help in troubleshooting the source of the crash. This behavior can be modified in two ways; via the registry or using the System Properties property sheet.

[Start] [Run] [Regedit]

Registry Key: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\CrashControl

Modify/Create DWORD Value of Data type REG_DWORD Named [AutoReboot]
Setting for Value Data: [0 = AutoReboot Disabled / 1 = AutoReboot Enabled]

Exit Registry / Reboot

Open System Properties via Start > Control Panel > Performance and Maintenance > System

[System Properties may also be opened using the WinKey+Pause key combination]

Select the Advanced tab and then click Settings in the Startup and Recovery section

In System Failure section, clear the checkbox next to Automatically Restart

Click OK and OK to exit

26. Modify Control Panel Categories

Even if you like the new style for Control Panel, you might at times wish you could shift some items around into a different category. It's possible.

[Start] [Run] [Regedit]

Go to: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Control Panel\Extended Properties\{305CA226-D286-468e-B848-2B2E8E697B74} 2

Modify/Create DWORD Value of Data type REG_DWORD Named [Choose one of the applets with .cpl extension]

Setting for Value Data: [Select the value from table below]

Other Control Panel Options 0
Appearance and Themes 1
Printers and Other Hardware 2
Network and Internet Connections 3
Sounds, Speed, and Audio Devices 4
Performance and Maintenance 5
Date, Time, Language, and Regional Options 6
Accessibility Options 7
Add or Remove Programs 8
User Accounts 9

Exit Registry / Reboot

To further customize the items that appear in the new Control Panel, do a search of your system for all files that end in .cpl extension. If they aren't already listed, you can add them with a new DWORD value and then assign them to a category of your choosing.

27. Enable/Disable Run Commands Specific to the Registry

This tweak controls the use of the Run command on the local machine

[Start] [Run] [Regedit]

Go to: HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\ Policies\Explorer

Create a DWORD value of Data Type REG_DWORD for each Run function that will be disabled.

Modify/Create the Value Name [DisableLocalMachineRun]
Modify/Create the Value Name [DisableLocalMachineRunOnce]

Modify/Create the Value Name [DisableCurrentUserRun]
Modify/Create the Value Name [DisableCurrentUserRunOnce]

Setting for Value Data: [0 = Disabled / 1 = Enabled]

Exit Registry / Reboot

28. Enable/Disable System Properties Access from My Computer

This tweak removes access to System Properties via My Computer as well as via Control Panel.

[Start] [Run] [Regedit]

Go to: HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer

Modify/Create DWORD Value of Data type REG_DWORD Named [NoPropertiesMyComputer]
Value Data: [0 - Display Properties / 1 - Hide Properties]

Exit Registry / Reboot

29. Uninstall Programs Manually

Just because Windows XP has the Add/Remove Programs feature it doesn't mean your application will appear in the list. Furthermore, even if it does appear, it's no guarantee that the uninstall feature will work. When you run across one of these situations the items listed below will help in getting rid of the application. Be aware that these steps may not remove everything associated with the application and can impact other applications on the computer. Have a backup or restore point and use caution.

Find the directory for the application and delete all the files in the directory. Delete the directory.

Open regedit and navigate to HKEY_LOCAL_MACHINE\SOFTWARE and find the folder for the application. Delete the folder.

Open regedit and navigate to HKEY_CURRENT_USER\SOFTWARE and find the folder for the application. Delete the folder.

To remove the application entry from Add/Remove Programs (if present) open regedit and navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall and find the folder for the application. Delete the folder.

Some applications have Services attached to them. If this is the case, navigate to HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services, locate and delete the service.

In Windows Explorer, navigate to the individual user settings and delete program references. Common places to check would be:

C:\Documents and Settings\All Users\Start Menu\Programs and delete relevant entries.

C:\Documents and Settings\All Users\Start Menu\Programs\Startup and delete relevant entries.

C:\Documents and Settings\%YourUserID%\Start Menu\Programs and delete relevant entries.

[Do this for each User ID listed]

C:\Documents and Settings\%YourUserID%\Start Menu\Programs\Startup and delete relevant entries.

[Do this for each User ID listed]

If no entries were found in the previous step and the application launches automatically, navigate to

HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\Windows

and delete the entry.

30. Create a right-click command prompt option

You can right-click a folder to get a list of actions you can apply to it. Here?s a way to create an action on that right-click menu that opens a command prompt window with that folder as the current directory. In a text editor such as Notepad, type the following exactly:

Windows Registry Editor Version 5.00

[HKEY_CLASSES_ROOT\Folder\shell\Cmd Here]

@=?Command &Prompt Here?

[HKEY_CLASSES-ROOT\Folder\shell\Cmd Here\command]

@=?cmd.exe /k pushd %L?



Save the file with any name you want, with a .reg extension. Then double-click the saved file and choose Yes to merge the file?s information into the Registry. You can delete the file. Right-click any folder and you?ll see the CommandPrompt Here option.

31. Adjusting System Restore values

The new System Restore feature in Windows XP automatically backs up a snapshot of your system, including your Registry, every 24 hours. It also saves restore points for 90 days. Neither of these values is directly editable in the System Restore program, but you can change them in the Registry. Go to:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\WindowsNT\CurrentVersion\SystemRestore

You?ll find an assortment of settings here. To change the interval between automatically created restore points, change the RPGlobalInterval setting. To change the number of days that a restore point is retained, change the RPLifeInterval setting.

System Restore time intervals are measured in seconds, not days, so you must convert the number of days you want into seconds. There are 86,400 seconds in a day, so multiply 86,400 by the number of days you want to determine the value. (There are 3,600 seconds in an hour, I hope you know)

32. Erase the swap file at shutdown

You might be concerned about someone browsing your users? swap files and gathering up little bits of their sensitive data. A remote possibility, to be sure, but it could happen. For that extra measure of security, go to:

HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Session Manager\Memory Management

Set the ClearPageFileAtShutdown DWORD to 1. This will make shutdowns take longer, because it overwrites everything in the swap file with zeroes. Don?t turn this feature on unless you have a serious security threat.

33. Delete the Files Stored on This Computer category in the My Computer window

In Windows XP, the My Computer window?s listing is broken down by categories: Hard Disk Drives, Devices with Removable Storage, and so on. One of these categories is Files Stored on This Computer, which appears at the top of the My Computer window. If a user doesn?t need it , you can get rid of it. To do so, go to:

HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Explorer\MyComputer\
NameSpace\Delegate Folders

Delete the {59031a47-3f72-44a7-89c55595fe6b30ee} subkey to remove the category.

34. Change the desktop cleanup frequency

Through Display Properties (Desktop tab, Customize Desktop button, General tab), you can turn on and off a feature that runs the Desktop Cleanup Wizard every 60 days. You don?t have an option to set a different interval there, but you can change the interval in the Registry. To do so, go to:

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Desktop\CleanupWiz

Change the Days Between Clean Up Value to some other number of days (in decimal format).

35. Sort menus alphabetically

When you install a new program for a user, it doesn?t find its place in the alphabetical Start menu hierarchy right away; it hangs out at the bottom for a little while. If your users employ the Classic Start menu, they can re-alphabetize it manually by right-clicking the taskbar and choosing Properties, clicking the Customize button next to the Classic Start Menu, and clicking the Sort button. With the Windows XP style of Start menu, however, you don?t have an equivalent button. To make Windows always alphabetize the list, remove the permissions from the Registry key that controls the sort order for the Start menu. To do so, go to:

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\MenuOrder

Choose Edit | Permissions and click the Advanced button. Deselect the Inherit From Parent The Permission Entries That Apply To Child Objects check box and then click Copy when the Security dialog box pops up. Click OK and clear the Full Control entry for your account and all security groups you are a member of. Leave only Read permission.

36. Prevent programs from loading at startup

Remember back in the good old days of Windows 3.1 when you could open up the Win.ini file in a text editor and remove an item from the RUN= line to disable it from running at startup? With Windows 9x and above, the Win.ini file became less useful because 32-bit programs were set to run at startup from within the Registry instead.

One way to selectively disable programs from loading at startup is to use MSCONFIG (from the Run command) to deselect certain items. Another way to remove them is to edit the Registry directly. Consider the following locations:

HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run

for applications that start up for all users

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run

for applications that start up when the current user logs on

Remove the entry for a program by right-clicking it and selecting Delete to prevent it from loading.

37. Change categories in the Control Panel

Windows XP?s Control Panel is broken down by category in the default Category view, but the group to which an item belongs is not always obvious. If you disagree with Microsoft?s assignments, you can switch them around. To assign a different category to an item, go to:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Control Panel\Extended Properties\
{305CA226-D286-468e-B848-2B2E8E697B74} 2

Find the item you want to change and double-click it to bring up a dialog box. Change the item?s DWORD value to your preference. Use the Table given below as a guide (shown with decimal numbers, which is the way you should enter them).

DWORD value to set

Other Control Panel Options 0

Appearance and Themes 1

Printers and Other Hardware 2

Network and Internet Connections 3

Sounds, Speed, and Audio Devices 4

Performance and Maintenance 5

Date, Time, Language, and Regional Options 6

Accessibility Options 7

Add or Remove Programs 8

User Accounts 9

38. Grouping multiple open windows

Windows XP will group multiple open windows (IE windows for example) into one group on the task bar to keep the taskbar clear. This can be annoying at times - especially when comparing different web pages because you have to go back to the task bar, click on the group and then click on the page you want and then you only get one page because you have to click on each one separately. I think the default for this is 8 windows - any combination of apps or utilities open.

You can modify this behavior by adding this registry key at:

HKEY_CURRRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\

add a Dword value of type REG_DWORD named [TaskbarGroupSize]

modify "TaskbarGroupSize" entry to be the number of windows you want open before XP starts to group them on the task bar.

A value of 2 will cause the Taskbar buttons to always group

Another tweak is to disable or enable recent documents history. This can be done at:

HKEY_CURRRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\

this key should already be present - if it isn't you'll need to add it:

Add a Binary value of type REG_BINARY named [NoRecentDocsHistory]

modify it so that value reads 01 00 00 00

39. Disable Tips

To disable Ballon tips in Windows XP do this registry tweak

Go to : HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced

Create a new DWORD value, name it EnableBalloonTips, and set it equal to 0. If EnableBalloonTips is already there and equal to 1, set it equal to 0. Quit the registry editor, log off, and log back on. Voila! Your computer will stop talking down to you.

40. Add/Remove optional features of Windows XP

To dramatically expand the list of applications you can remove from Windows XP after installation, navigate to C:\WINDOWS\inf and open the sysoc.inf file. {Opps , if you didn?t find the inf directory, you are right. It?s a hidden folder, so go to Tools>Folder Options> View , enable Show Hidden Files & Folders.}

[Version]

Signature = "$Windows NT$"

DriverVer=07/01/2001,5.1.2600.0

[Components]

NtComponents=ntoc.dll,NtOcSetupProc,,4

WBEM=ocgen.dll,OcEntry,wbemoc.inf,hide,7

Display=desk.cpl,DisplayOcSetupProc,,7

Fax=fxsocm.dll,FaxOcmSetupProc,fxsocm.inf,,7

NetOC=netoc.dll,NetOcSetupProc,netoc.inf,,7

iis=iis.dll,OcEntry,iis.inf,,7

com=comsetup.dll,OcEntry,comnt5.inf,hide,7

dtc=msdtcstp.dll,OcEntry,dtcnt5.inf,hide,7

IndexSrv_System = setupqry.dll,IndexSrv,setupqry.inf,,7

TerminalServer=TsOc.dll, HydraOc, TsOc.inf,hide,2

msmq=msmqocm.dll,MsmqOcm,msmqocm.inf,,6

ims=imsinsnt.dll,OcEntry,ims.inf,,7

fp_extensions=fp40ext.dll,FrontPage4Extensions,fp40ext.inf,,7

AutoUpdate=ocgen.dll,OcEntry,au.inf,hide,7

msmsgs=msgrocm.dll,OcEntry,msmsgs.inf,hide,7

RootAutoUpdate=ocgen.dll,OcEntry,rootau.inf,,7

IEAccess=ocgen.dll,OcEntry,ieaccess.inf,,7



Games=ocgen.dll,OcEntry,games.inf,,7

AccessUtil=ocgen.dll,OcEntry,accessor.inf,,7

CommApps=ocgen.dll,OcEntry,communic.inf,HIDE,7

MultiM=ocgen.dll,OcEntry,multimed.inf,HIDE,7

AccessOpt=ocgen.dll,OcEntry,optional.inf,HIDE,7

Pinball=ocgen.dll,OcEntry,pinball.inf,HIDE,7

MSWordPad=ocgen.dll,OcEntry,wordpad.inf,HIDE,7

ZoneGames=zoneoc.dll,ZoneSetupProc,igames.inf,,7

[Global]

WindowTitle=%WindowTitle%

WindowTitle.StandAlone="*"

The entries that include the text hide or HIDE will not show up in Add/Remove Windows Components by default. To fix this, do a global search and replace for ,hide and change each instance of this to , (a comma). Then, save the file, re launch Add/Remove Windows Components,

41. Remove Windows Messenger

It seems that a lot of people are interested in removing Windows Messenger for some reason, though I strongly recommend against this: In Windows XP, Windows Messenger will be the hub of your connection to the .NET world, and now that this feature is part of Windows, I think we're going to see a lot of .NET Passport-enabled Web sites appearing as well. But if you can't stand the little app, there are a couple of ways to get rid of it, and ensure that it doesn't pop up every time you boot into XP. The best way simply utilizes the previous tip:

If you'd like Windows Messenger to show up in the list of programs you can add and remove from Windows, navigate to C:\WINDOWS\inf and open sysoc.inf (see the previous tip for more information about this file). You'll see a line that reads:

msmsgs=msgrocm.dll,OcEntry,msmsgs.inf,hide,7

Change this to the following and Windows Messenger will appear in Add or Remove Programs, then Add/Remove Windows Components, then , and you can remove it for good:

msmsgs=msgrocm.dll,OcEntry,msmsgs.inf,7

42. Rename multiple files ( it is not a Registry tweak though. I thought this to be really cool, so I have put it here)

A new, small, neat feature for Windows XP deals with renaming files. I personally have always wanted the OS to include a way to do a mass file renaming on a bunch of files. You can now rename multiple files at once .Its really simple:

Select several files in Explorer, press F2 and rename one of those files to something else. All the selected files get renamed to the new file name (plus a number added to the end). Simple J




I hope you enjoyed the above Registry tricks ! May be next time I?ll come up with more. That's all for now .
To know more tricks + topics on Hacking, Security, Programming.





XP REPAIR INSTALL

1. Boot the computer using the XP CD. You may need to change the
      boot order in the system BIOS. Check your system documentation
      for steps to access the BIOS and change the boot order.
   
   
  2. When you see the "Welcome To Setup" screen, you will see the
     options below This portion of the Setup program prepares Microsoft
     Windows XP to run on your computer:

   To setup Windows XP now, press ENTER.

   To repair a Windows XP installation using Recovery Console, press R.

   To quit Setup without installing Windows XP, press F3.


   
   
    3. Press Enter to start the Windows Setup.

      do not choose "To repair a Windows XP installation using the
      Recovery Console, press  R", (you do not want to load Recovery
      Console). I repeat, do not choose "To repair a Windows XP
      installation using the Recovery Console, press  R".

    4. Accept the License Agreement and Windows will search for existing
       Windows installations.

    5. Select the XP installation you want to repair from the list and
       press R to start the repair. If Repair is not one of the options,
       read  this Warning!!

    6. Setup will copy the necessary files to the hard drive and reboot. 
       Do not press any key to boot from CD when the message appears.
       Setup will continue as if it were doing a clean install, but your
       applications and settings will remain intact.
    
    Blaster worm warning: Do not immediately activate over the internet
    when asked, enable the XP firewall
    [ http://support.microsoft.com/?kbid=283673 ]
    before connecting to the internet. You can activate after the
    firewall is enabled. Control Panel - Network Connections. Right click
    the connection you use, Properties, and there is a check box on the
    Advanced [ http://michaelstevenstech.com/xpfirewall1.jpg ] page.


    7. Reapply updates or service packs applied since initial Windows XP
    installation. Please note that a Repair Install from the Original
    install XP CD will remove SP1/SP2 and service packs will need to be
    reapplied.
    Service Pack 2
    http://www.microsoft.com/downloads/details.aspx?FamilyId=049C9DBE-3B8E-
    4F30-8245-9E368D3CDB5A&displaylang=en
    An option I highly recommend is creating a Slipstreamed XP CD with SP2.
    Slipstreaming Windows XP with Service Pack 2 (SP2)
    http://www.winsupersite.com/showcase/windowsxp_sp2_slipstream.asp

  ______________________________________________________________________
   
    Warning!!
    If the option to Repair Install is not available and you continue
    with the install;you will delete your Windows folder and Documents
    and Settings folder. All applications that place keys in the registry
    will need to be re-installed. You should exit setup if the repair
    option is not available and consider other options.

    Try the link below if the repair option is not available.
    Windows XP Crashed?
    http://www.digitalwebcast.com/2002/03_mar/tutorials/cw_boot_toot.htm
    Here's Help.
    A salvage mission into the depths of Windows XP, explained by a
    non-geek

    by Charlie White
    http://www.digitalwebcast.com/2002/03_mar/tutorials/cw_boot_toot.htm

    Related links
    You May Lose Data or Program Settings After Reinstalling, Repairing,
    or Upgrading Windows XP (Q312369)
    http://support.microsoft.com/default.aspx?scid=kb;en-us;Q312369

    System Restore "Restore Points" Are Missing or Deleted (Q301224)
    http://support.microsoft.com/default.aspx?scid=kb;en-us;Q301224

    How to Perform an In-Place Upgrade (Reinstallation) of Windows XP
    (Q315341)
    http://support.microsoft.com/search/preview.aspx?scid=kb;en-us;Q315341
   
    Warning!! If the Repair Option is not Available
    What should I do? Most important do not ignore the information below!

    If the option to Repair Install is NOT available and you continue
    with the install; you will delete your Windows folder, Documents and
    Settings folders.  All Applications that place keys in the registry
    will need to be re-installed.

    You should exit setup if the repair option is not available and
    consider other options. I have found if the Repair option is not
    available, XP is usually not repairable and will require a Clean
    install.http://michaelstevenstech.com/cleanxpinstall.html
    If you still have the ability to access the Windows XP installation,
    backup all important files not restorable from other sources before
    attempting any recovery console trouble shooting attempts.
   
    Possible Fix by reconfiguring boot.ini using Recovery Console.
    1.Boot with XP CD or 6 floppy boot disk set.
    2. Press R to load the Recovery Console. 
    3. Type bootcfg. 
    4. This should fix any boot.ini errors causing setup not to see the 
       XP OS install. 
    5. Try the repair install.

    One more suggestion from MVP Alex Nichol

    "Reboot, this time taking the immediate R option, and if the CD
     letter is say K: give these commands

    COPY K:\i386\ntldr C:\
    COPY K:\i386\ntdetect.com C:\


   (two other files needed - just in case)

   1. Type: ATTRIB -H -R -S C:\boot.ini DEL C:\boot.ini

   2. Type: BootCfg /Rebuild

   which will get rid of any damaged boot.ini, search the disk for
   systems and make a new one. This might even result in a damaged
   windows reappearing; but gives another chance of getting at the
   repair"

windows true hidden files

--ACRONYMS--
DOS = Disk Operating System, or MS-DOS
MSIE = Microsoft Internet Explorer
TIF = Temporary Internet Files (folder)
HD = Hard Drive
OS = Operating System
FYI = For Your Information

1)SEEING IS BELIEVING
No. Enabling Windows Explorer to "show all files" does not show the files in mention. No. DOS does not
list the files after receiving a proper directory listing from root. And yes. Microsoft intentionally
disabled the "Find" utility from searching through one of the folders.

Oh, but that's not all.

To see for yourself simply do as you would normally do to clear your browsing history. Go to Internet
Options under your Control Panel. Click on the [Clear History] and [Delete Files] buttons. (Make sure
to include all offline content.)

So, has your browsing history been cleared? One would think so.

These are the names and locations of the "really hidden files":

c:\windows\history\history.ie5\index.dat
c:\windows\tempor~1\content.ie5\index.dat
If you have upgraded MSIE several times, they might have alternative names of mm256.dat and
mm2048.dat, and may also be located here:

c:\windows\tempor~1\
c:\windows\history\
Not to mention the other alternative locations under:

c:\windows\profiles\%user%\...
c:\windows\application data\...
c:\windows\local settings\...
c:\windows\temp\...
c:\temp\...
(or as defined in your autoexec.bat.)

FYI, there are a couple other index.dat files that get hidden as well, but they are seemingly not very
important. See if you can find them.

2)IF YOU HAVE EVER USED MICROSOFT INTERNET EXPLORER
1) Shut your computer down, and turn it back on.
2) While your computer is booting keep pressing the [F8] key until you are given an option screen.
3) Choose "Command Prompt Only" (This will take you to true DOS mode.) Windows ME users must use a boot
disk to get into real DOS mode.
4) When your computer is done booting, you will have a C:\> followed by a blinking cursor.
Type this in, hitting enter after each line. (Obviously, don't type the comments in parentheses.)

C:\WINDOWS\SMARTDRV (Loads smartdrive to speed things up.)
CD\
DELTREE/Y TEMP (This line removes temporary files.)
CD WINDOWS
DELTREE/Y COOKIES (This line removes cookies.)
DELTREE/Y TEMP (This removes temporary files.)
DELTREE/Y HISTORY (This line removes your browsing history.)
DELTREE/Y TEMPOR~1 (This line removes your internet cache.)

(If that last line doesn't work, then type this

CD\WINDOWS\APPLIC~1
DELTREE/Y TEMPOR~1

(If that didn't work, then type this

CD\WINDOWS\LOCALS~1
DELTREE/Y TEMPOR~1
If you have profiles turned on, then it is likely located under \windows\profiles\%user%\, while older
versions of MSIE keep them under \windows\content\.)

FYI, Windows re-creates the index.dat files automatically when you reboot your machine, so don't be
surprised when you see them again. They should at least be cleared of your browsing history.

3)CLEARING YOUR REGISTRY
It was once believed that the registry is the central database of Windows that stores and maintains the
OS configuration information. Well, this is wrong. Apparently, it also maintains a bunch of other
information that has absolutely nothing to do with the configuration. I won't get into the other
stuff, but for one, your typed URLs are stored in the registry.

HKEY_USERS/Default/Software/Microsoft/Internet Explorer/TypedURLs/
HKEY_CURRENT_USER/Software/Microsoft/Internet Explorer/TypedURLs/
These "Typed URLs" come from MSIE's autocomplete feature. It records all URLs that you've typed in manually
in order to save you some time filling out the address field.

4)SLACK FILES
As you may already know, deleting files only deletes the references to them. They are in fact still sitting
there on your HD and can still be recovered by a very motivated person.
Use window washer to delete slack files. /http://www.webroot.com/download/0506/reg3ww.exe

5)STEP-BY-STEP GUIDE THROUGH YOUR HIDDEN FILES
The most important files to be paying attention to are your "index.dat" files. These are database files
that reference your history, cache and cookies. The first thing you should know is that the index.dat files
is that they don't exist in less you know they do. They second thing you should know about them is that
some will *not* get cleared after deleting your history and cache.

To view these files, follow these steps:

In MSIE 5.x, you can skip this first step by opening MSIE and going to Tools > Internet Options > [Settings] > [View Files].
Now write down the names of your alphanumeric folders on a piece of paper. If you can't see any alphanumeric
folders then start with step 1 here:

1) First, drop to a DOS box and type this at prompt (in all lower-case). It will bring up Windows Explorer
under the correct directory.

c:\windows\explorer /e,c:\windows\tempor~1\content.ie5\
You see all those alphanumeric names listed under "content.ie5?" (left-hand side.) That's Microsoft's
idea of making this project as hard as possible. Actually, these are your alphanumeric folders that was
created to keep your cache. Write these names down on a piece of paper. (They should look something like
this: 6YQ2GSWF, QRM7KL3F, U7YHQKI4, 7YMZ516U, etc.) If you click on any of the alphanumeric folders then
nothing will be displayed. Not because there aren't any files here, but because Windows Explorer has lied
to you. If you want to view the contents of these alphanumeric folders you will have to do so in DOS.

2) Then you must restart in MS-DOS mode. (Start > Shutdown > Restart in MS-DOS mode. ME users use a
bootdisk.)

Note that you must restart to DOS because windows has locked down some of the files and they can only be
accessed in real DOS mode.

3) Type this in at prompt:

CD\WINDOWS\TEMPOR~1\CONTENT.IE5
CD %alphanumeric%
(replace the "%alphanumeric%" with the first name that you just wrote down.)

DIR/P
The cache files you are now looking at are directly responsible for the mysterious erosion of HD space
you may have been noticing.

5) Type this in:

CD\WINDOWS\TEMPOR~1\CONTENT.IE5
EDIT /75 INDEX.DAT
You will be brought to a blue screen with a bunch of binary.

6) Press and hold the [Page Down] button until you start seeing lists of URLs. These are all the sites
that you've ever visited as well as a brief description of each. You'll notice it records everything
ou've searched for in a search engine in plain text, in addition to the URL.

7) When you get done searching around you can go to File > Exit. If you don't have mouse support in DOS
then use the [ALT] and arrow keys.

Next you'll probably want to erase these files by typing this:

C:\WINDOWS\SMARTDRV
CD\WINDOWS
DELTREE/Y TEMPOR~1
(replace "cd\windows" with the location of your TIF folder if different.)

9) Then check out the contents of your History folder by typing this:

CD\WINDOWS\HISTORY\HISTORY.IE5
EDIT /75 INDEX.DAT
You will be brought to a blue screen with more binary.

10) Press and hold the [Page Down] button until you start seeing lists of URLS again.

This is another database of the sites you've visited.

11) And if you're still with me, type this:

CD\WINDOWS\HISTORY
12) If you see any mmXXXX.dat files here then check them out (and delete them.) Then:

CD\WINDOWS\HISTORY\HISTORY.IE5
CD MSHIST~1
EDIT /75 INDEX.DAT
More URLs from your internet history. Note, there are probably other mshist~x folders here so you can
repeat these steps for every occurence if you please.

13) By now, you'll probably want to type in this:

CD\WINDOWS
DELTREE/Y HISTORY

6)HOW MICROSOFT DOES IT
How does Microsoft make these folders/files invisible to DOS?

The only thing Microsoft had to do to make the folders/files invisible to a directory listing is to
set them +s[ystem]. That's it.

So how does Microsoft make these folders/files invisible to Windows Explorer?

The "desktop.ini" is a standard text file that can be added to any folder to customize certain aspects of
the folder's behavior. In these cases, Microsoft utilized the desktop.ini file to make these files
invisible. Invisible to Windows Explorer and even to the "Find: Files or Folders" utility. All that
Microsoft had to do was create a desktop.ini file with certain CLSID tags and the folders would disappear
like magic.

To show you exactly what's going on:

Found in the c:\windows\temporary internet files\desktop.ini and
the c:\windows\temporary internet files\content.ie5\desktop.ini is this text:

[.ShellClassInfo]
UICLSID={7BD29E00-76C1-11CF-9DD0-00A0C9034933}
Found in the c:\windows\history\desktop.ini and the c:\windows\history\history.ie5\desktop.ini is this text:

[.ShellClassInfo]
UICLSID={7BD29E00-76C1-11CF-9DD0-00A0C9034933}
CLSID={FF393560-C2A7-11CF-BFF4-444553540000}
The UICLSID line cloaks the folder in Windows Explorer. The CLSID line disables the "Find" utility
from searching through the folder.

To see for yourself, you can simply erase the desktop.ini files. You'll see that it will instantly give
Windows Explorer proper viewing functionality again, and the "Find" utility proper searching capabilities
again. Problem solved right? Actually, no. As it turns out, the desktop.ini files get reconstructed every
single time you restart your computer. Nice one, Slick.

Luckily there is a loophole which will keep Windows from hiding these folders. You can manually edit the
desktop.ini's and remove everything except for the "[.ShellClassInfo]" line. This will trick windows into
thinking they have still covered their tracks, and wininet won't think to reconstruct them.

Performance Increase Through My Computer

1: Start > Right Click on My Computer and select properties.
2: Click on the "Advanced" tab
3: See the "Perfomance" section? Click "Settings"
4: Disable all or some of the following:

Fade or slide menus into view
Fade or slide ToolTips into view
Fade out menu items after clicking
Show Shadows under menus
Slide open combo boxes
Slide taskbar buttons
Use a background image for each folder type
Use common tasks in folders

There, now Windows will still look nice and perform faster

PC Maintenance Guide

"Take good care of your PC, and it will take good care of you."

It's a nice sentiment, but reality is more like "Take good care of your PC, and it won't crash, lose your data, and cost you your job--probably." Follow these steps to stop PC problems before they stop you.

Your PC's two mortal enemies are heat and moisture. Excess heat accelerates the deterioration of the delicate circuits in your system. The most common causes of overheating are dust and dirt: Clogged vents and CPU cooling fans can keep heat-dissipating air from moving through the case, and even a thin coating of dust or dirt can raise the temperature of your machine's components.

Any grime, but especially the residue of cigarette smoke, can corrode exposed metal contacts. That's why it pays to keep your system clean, inside and out.

If your PC resides in a relatively clean, climate-controlled environment, an annual cleaning should be sufficient. But in most real-world locations, such as dusty offices or shop floors, your system may need a cleaning every few months.

All you need are lint-free wipes, a can of compressed air, a few drops of a mild cleaning solution such as Formula 409 or Simple Green in a bowl of water, and an antistatic wrist strap to protect your system when you clean inside the case.

Think Outside the Box

Before you get started cleaning, check around your PC for anything nearby that could raise its temperature (such as a heating duct or sunshine coming through a window). Also clear away anything that might fall on it or make it dirty, such as a bookcase or houseplants.

Always turn off and unplug the system before you clean any of its components. Never apply any liquid directly to a component. Spray or pour the liquid on a lint-free cloth, and wipe the PC with the cloth.

Clean the case: Wipe the case and clear its ventilation ports of any obstructions. Compressed air is great for this, but don't blow dust into the PC or its optical and floppy drives. Keep all cables firmly attached to their connectors on the case.

Maintain your mechanical mouse: When a nonoptical mouse gets dirty, the pointer moves erratically. Unscrew the ring on the bottom of the unit and remove the ball. Then scrape the accumulated gunk off the two plastic rollers that are set 90 degrees apart inside the ball's housing.

Keep a neat keyboard: Turn the keyboard upside down and shake it to clear the crumbs from between the keys. If that doesn't suffice, blast it (briefly) with compressed air. If your keys stick or your keyboard is really dirty, pry the keys off for easier cleaning. Computer shops have special tools for removing keys, but you can also pop them off by using two pencils with broken tips as jumbo tweezers--just be sure to use a soft touch.

Make your monitor sparkle: Wipe the monitor case and clear its vents of obstructions, without pushing dust into the unit. Clean the screen with a standard glass cleaner and a lint-free cloth. If your monitor has a degauss button (look for a small magnet icon), push it to clear magnetic interference. Many LCDs can be cleaned with isopropyl alcohol; check with your LCD manufacturer. Wipe your LCD lightly: The underlying glass is fragile.

Check your power protection: Reseat the cables plugged into your surge protector. Check the unit's warning indicator, if it has one. Surge protectors may power your PC even after being compromised by a voltage spike (making your system susceptible to a second spike). If your power protector doesn't have a warning indicator and your area suffers frequent power outages, replace it with one that has such an indicator and is UL 1449 certified.

Swipe your CD and DVD media: Gently wipe each disc with a moistened, soft cloth. Use a motion that starts at the center of the disc and then moves outward toward the edge. Never wipe a disc in a circular motion.

Inside the Box

Before cracking open the case, turn off the power and unplug your PC. Ground yourself before you touch anything inside to avoid destroying your circuitry with a static charge. If you don't have a grounding wrist strap, you can ground yourself by touching any of various household objects, such as a water pipe, a lamp, or another grounded electrical device. Be sure to unplug the power cord before you open the case.

Use antistatic wipes to remove dust from inside the case. Avoid touching any circuit-board surfaces. Pay close attention to the power-supply fan, as well as to the case and to CPU fans, if you have them. Spray these components with a blast of compressed air to loosen dust; but to remove the dust rather than rearrange it, you should use a small vacuum.

If your PC is more than four years old, or if the expansion cards plugged into its motherboard are exceptionally dirty, remove each card, clean its contacts with isopropyl alcohol, and reseat it. If your system is less than a couple years old, however, just make sure each card is firmly seated by pressing gently downward on its top edge while not touching its face. Likewise, check your power connectors, EIDE connectors, and other internal cables for a snug fit.

While you have the case open, familiarize yourself with the CMOS battery on the motherboard. For its location, check the motherboard manual. If your PC is more than four or five years old, the CMOS battery may need to be replaced. (A system clock that loses time is one indicator of a dying CMOS battery.)

Look for Trouble

Give your PC a periodic checkup with a good hardware diagnostic utility. Two excellent choices are Sandra Standard from SiSoftware and #1-TuffTest-Lite from #1-PC Diagnostics. Download the free version of Sandra (the full version of the application costs $35) or to download #1-TuffTest-Lite (the fully functional version is $10).

Sandra Standard:
CODE
http://www.pcworld.com/downloads/file_description/0,fid,4005,tk,ur,00.asp


#1-TuffTest-Lite:
CODE
http://www.pcworld.com/downloads/file_description/0,fid,7725,tk,ur,00.asp


Adding and removing system components leaves orphaned entries in the Windows Registry. This can increase the time your PC takes to boot and can slow system performance. Many shareware utilities are designed to clean the Registry.

Windows stores files on a hard drive in rows of contiguous segments, but over time the disk fills and segments become scattered, so they take longer to access. To keep your drive shipshape, run Windows' Disk Defragmenter utility. Click Start, Programs (All Programs in XP), Accessories, System Tools, Disk Defragmenter. If your drive is heavily fragmented, you could boost performance. Defragging may take hours, however. Disable your screen saver and other automatic programs beforehand to keep the defrag from restarting every few minutes.

Disk Defragmenter won't defragment the file on your hard drive that holds overflow data from system memory (also known as the swap file). Since the swap file is frequently accessed, defragmenting it can give your PC more pep. You can defragment your swap file by using a utility such as the SpeedDisk program included with Norton SystemWorks 2004, but there's a way to reset it in Windows.

In Windows XP, right-click My Computer and choose Properties. Click Advanced, and then choose the Settings button under Performance. Click Advanced again and the Change button under Virtual Memory. Select another drive or partition, set your swap file size, and click OK.

If you have only one partition and no way to create a second one, and you have at least 256MB of RAM, disable the swap file rather than moving it: Select "No paging file" in the Virtual Memory settings. If you have trouble booting, start Windows in Safe Mode and re-enable this option.

Hard-Drive Checkup
Windows XP offers a rudimentary evaluation of your hard disk's health with its error-checking utility: Right-click the drive's icon in Windows Explorer and select Properties, Tools, Check Now. (Windows can fix errors and recover bad sectors automatically if you wish.) If the check discovers a few file errors, don't worry, but if it comes up with hundreds of errors, the drive could be in trouble.

To conduct a more thorough examination, download Panterasoft's free HDD Health utility, which monitors hard-drive performance and warns of impending disaster:
CODE
http://www.pcworld.com/downloads/file_description/0,fid,22945,tk,ur,00.asp


The program works only with drives that support S.M.A.R.T technology, but nearly all drives released since 2000 are S.M.A.R.T.-compliant.

Many hardware and software designers humbly assume you want their program running on your PC all the time, so they tell Windows to load the application at startup (hence, the ever-growing string of icons in your system tray). These programs eat up system resources and make hardware conflicts and compatibility problems more likely. To prevent them from launching, just click Start, Run, type "msconfig" and press Enter. The programs listed under the Startup tab are set to start along with Windows. Uncheck the box at the left of each undesirable program to prevent it from starting automatically.

Four Tips for Longer PC Life

1. Keep your PC in a smoke-free environment. Tobacco smoke can damage delicate contacts and circuits.

2. Leave your PC running. Powering up from a cold state is one of the most stressful things you can do to your system's components. If you don't want to leave your PC running all the time, use Windows' Power Management settings to put your machine into hibernation rather than completely shutting down. In Windows XP, right-click the desktop and select Properties. Click the Screen Saver tab and select the Power button. Choose the Hibernate tab to ensure that hibernation is enabled, and then select a time beneath "System hibernates" under the Power Schemes tab. (Note that this option is not available on all PCs.) Computers running older versions of Windows may or may not provide similar power-management features. Look under the Power Management icon (Power Options in Windows 2000) in Control Panel to evaluate your machine's capabilities.

3. Don't leave your monitor running. The best way to extend your display's life is to shut it off when it's not in use.

4. Avoid jostling the PC. Whenever you move your system, even if it's just across the desktop, make sure the machine is shut down and unplugged.

QUICK SHUTDOWN FOR XP

Ever want a quicker way to shutdown XP without navigating through the start menu, or using a third party shutdown utility Here is a script that will do just that.

Right click the desktop and choose New Shortcut. Copy and paste this script or type it in.

%windir%System32shutdown.exe -s -t 0

Choose Next and name it whatever you like. I name mine OFF. Click Finished. Right click and choose properties and pick a Icon for it if you'd like. I use a wall light switch Icon. I drag mine into my QuickLaunch toolbar for one click shutdown.

Enjoy!

MOBILE SECRETS CODES

Siemens Mobile Secret Codes:


C25:

SP unlock *#0003*(secret code 8 digits)#

*#0606# shows you Secret Code, but only without SIM Card.

*#06# for checking the IMEI (International Mobile Equipment Identity)

Resets language to automatic selection : * # 0000 # then Green button

Pin Out (electrical connections)

1- GND
2- SB
3- POWER
4- NC
5- TX
6- RX
7- CLOCK
8- DATA
9- GND MIC
10- HF MIC
11- AUDIO
12- GND AUDIO


Languages:

*#0000#+green phone - choose automaticaly
*#0001#+green phone - English
*#0030#+green phone - Greek
*#0031#+green phone - Netherlands
*#0032#+green phone - French
*#0034#+green phone - Spanish
*#0039#+green phone - Italian
*#0049#+green phone - German
*#0090#+green phone - Turkish

How to change PIN:

**04*old PIN*new PIN*new PIN#

How to check simlock status

*#0606# and then press left soft-key, you will see strange characters, then text ("brak blokad"). If you see for example 260-02, it means the phone is locked to Era GSM. In older models you can use *#06# and see the same information after clicking on left key (you will see IMEI and software version).


S4:

Monitor Mode - how to activate:

Press left soft-key, then 9 (SET UP) 8 (Phone Status). You will see IMEI number, then press left soft-key and in order 7684666 and red phone at the end (monitor mode has been activated). To read information from Monitor Mode - press left soft-key, then 5 (GSM SERVICE) and 6 (Monitor). Monitor mode turns off when you switch off the phone. You must activate it again if you want.

How to see date of software:

Press left soft-key, then 9 (SET UP) 8 (Phone status). You will see IMEI number, then press twice left soft-key, 98, left soft-key, 7684666, red phone (activates Monitor Mode), left soft-key, 56 (turns on Monitor Mode), left soft-key, 98, left soft-key, 7684666, hang up (red phone) >abck to "normal" and then left soft-key, 56.

S6, S8:

If you add to phonebook under 'own phone number' +12022243121 with namez (for example MMI), then you will see something smile.gif

S10, E10:

In phonebook enter +12022243121 as your own phone no. You will see a picture with sun, two palms and greetings.

S15e:

Monitor Mode:

Code: *#7436267*8378# (*#SIEMENS*TEST#)
Hold red phone button until it code disapears.
Menu 3.3.4 Choose frequency.
Menu 3.3.4.1 Automaticaly.
Menu 3.3.4.2 Choose GSM-900
Menu 3.3.4.3 Choose GSM-1800

Menu 10.1 MS info
Menu 10.2 Soft date
Menu 10.2.1 Software version.
Menu 10.2.2 EEProm version.
Menu 10.3 Tst and product info.
Menu 10.3.1 Handware data.
Menu 10.3.2 Date of manufacture
Menu 10.3.3 Service date
Menu 10.3.4 Date of repair.


S25:

Enhanced Full Rate
*#3370# turns on
#3370# turns off

Haft Rate Mode
*#4720# turns on
#4720# turns off.

Languages:

*#0000#+green phone - choose automaticaly
*#0001#+green phone - English
*#0030#+green phone - Greek
*#0031#+green phone - Netherlands
*#0032#+green phone - French
*#0034#+green phone - Spanish
*#0039#+green phone - Italian
*#0049#+green phone - German
*#0090#+green phone - Turkish

How to change PIN2?

**04*old PIN2*new PIN2*new PIN2#

What is my software version?

Menu 8-8-2 press left-softkey when you see IMEI number, or *#06# and then green phone button and then press left soft-key.

How to extend battery life:

IrDA - turn on only when you need.
Turn off automatic network search (6-3)Turn off Vibration alarm.

SP unlock *#0003*(secret code 8 digits)#

*#0606# shows you Secret Code, but only without SIM Card.

*#06# for checking the IMEI (International Mobile Equipment Identity)

Resets language to automatic selection : * # 0000 # then Green button



S25, M35, S35, C35

SP unlock *#0003*(secret code 8 digits)#

*#0606# shows you Secret Code, but only without SIM Card.

*#06# for checking the IMEI (International Mobile Equipment Identity)

Resets language to automatic selection : * # 0000 # then Green button






Secret Codes Of Nokia Mobiles:


Below we present secret codes of nokia mobile phones which are very useful for people who unlock phones and for amateurs of this topic. These special key sequences entered fromkeyboard of phone allow you to get some important information like IMEI number, release date, software version and much more. You can also choose default language, activatenetmonitor ect.


1610/1630

*#170602112302# (software version)

1610/1611

IMEI number: -*# 0 6 #
Software version: -* # 1 7 0 6 0 2 1 1 2 3 9 2 #
Simlock status: - # 9 2 7 0 2 6 8 9 #


2110

*#9999# (software version)

2110i/2110e

*#170602112302# or (depends on model)*#682371158412125# (software version)


NOKIA3110

*#06# -IMEI

*#3110# -Software version

##002# - allows to turn off voice mail.

*#7780# - restore factory settings

*#746025625#(or *#sim0clock#) - to check if clock of sim (SIM-Clock) can be stopped (SIM-Clock-stop is akind of standby mode which saces battery)

*#92702689# (or *#war0anty#) -"warranty code:"- you have to enter one of the following codes:

6232 (OK)displays month and year of production date (ie "0198")

7332 (OK) - displays date of last repair - if there is (ie. "DATE NOT SAVED")

7832 (OK) - displays date of purchase - if there is (ie. "DATE NOT SAVED")

9268 (OK) -displays serial number

37832 (OK) -sets purchase date in format MMYY (MM - month, YY - year)- attention: you can set it only once, so beware !

87267 (OK)-displays message "Confirm Transfer?" - meaning is unknown (?)

* # 9 2 7 0 2 6 8 9 # -Simlock info

*#31# (call) -sets if your phone no. will be hidden or not (works only in some networks)

*#76# (call) -sets if target phone number when you call should be displayed (works only in some networks)

*#77# (call) -(work s only in some networks)

*#33/35# (call -displays message "Service not active".

**31# (call) -your no. will not be showed to others when you make a call



3210


*#06# -IMEI

*#0000# -software version

*#92702689# (or *#war0anty#)- enters service mode.

*3370# -Turns on sound encoding system - Enhanced Full Rate.


#3370# -Turns off sound encoding system Enhanced Full Rate .

*4720# -Turns on battery save mode - saves about 30 % of energy.

#4720# -Turns off battery save mode.

xx# -Replace xx with desired phonebook entry - press # and you will see it on display.


51XX


*#06# -IMEI

*#0000# - Software version

*#92702689#( or *#war0anty#) Enter service mode.

*3370# -Turns on sound encoding system - Enhanced Full Rate.

#3370# -Turns off sound encoding system - Enhanced Full Rate.

*4720# -Turns on battery save mode - saves about 30 % of energy.

#4720# -Turns off battery save mode.

#pw+1234567890+1 -provider lock status

#pw+1234567890+2 -Network lock status

#pw+1234567890+3 -Provider lock status

#pw+1234567890+4 - SimCard lock status


NOKIA 61XX


*#06# -IMEI

*#0000# ;-*#99 99# (Nokia 6130)


*#92702689# (or *#war0anty#) Software versionEnter service mode.

*3370# -Turns on sound encoding system - Enhanced Full Rate.

#3370# -Turns off sound encoding system - Enhanced Full Rate.

*4720# -Turns on battery save mode - saves about 30 % of energy.

#4720# -Turns off battery save mode.


NOKIA8810


*#06# - IMEI

*#0000# -Software version

*#92702689# (or *#war0anty#) Enter service mode.

*3370# -Turns on sound encoding system - Enhanced Full Rate.

#3370# -Turns off sound encoding system - Enhanced Full Rate.

*4720# -Turns on battery save mode - saves about 30 % of energy

#4720# -Turns off battery save mode - saves about 30 % of energy



NOKIA99OO


*#06# -IMEI

*#682371158412125# -Software version

*#3283# -Displays week and year of manufacture, ie. 1497 means 14th week of 1997.



NOKIA 911O


*#06# IMEI


*#0000# SOFTWARE VERSION

*3370# Turns on sound encoding system - Enhanced Full Rate.

#3370# Turns off sound encoding system - Enhanced Full Rate.

*4720# Turns on battery save mode - saves about 30 % of energy.

#4720# Turns off battery save mode.



NOKIA 81XX


*#06# IMEI
*#8110# Software version
xx# Replace xx with desired phonebook entry - press # and you will see it on display

*#92702689# (or *#warOanty#)

"Warranty code:" - you have to enter one of the following codes:

9268 (OK) displays IMEI (International Mobile Equipment Identification)

6232 (OK) displays date of manufacture in format MMYY (MM - month, RR - year)


7832 (OK) displays date of purchase

7332 (OK) displays date of repair or upgrade

37832 (OK) sets date of purchase in format MMYY (MM - month, RR - year) - attention: you can set it only once, so beware !!!

87267 (OK) transmits user data/move data do service PC




Motorola Codes:



Motorola 920
---------------


Press menu and type one of these numbers and press OK:

11 = Status Review
13 = Available Networks
14 = Preferred Networks
22 = Select Keypad Tones
25 = Require SIM Card PIN
26 = Language Selection
32 = Repetitive Timer
33 = Single Alert Timer
34 = Set IN-Call Display
35 = Show Call Timers
36 = Show Call Charges
37 = Call Charge Settings
38 = Reset All Timers
43 = Reset All Timers
45 = Show Last Call
46 = Total For All Calls
47 = Lifetime Timer
51 = Change Unlock Code
52 = Master Reset
53 = Master Clear (Warning!! May result in deleting the Message Editor!!!)
54 = New Security Code
55 = Automatic Lock
63 = Battery Saving Mode

Free call tip

1 Enter the phone number
2 Enter OK
3 Type *#06#
4 Press Button C
5 And finally press the button for power off.

You should now be able to talk without being billed.


The 54# Tip:

Type 1#, 2#........54# on the keypad (when you're not in the menu) to get the phone number used for with this key when speed dialing.





Motorola 930
--------------


Press menu and type one of these numbers and press OK:

11 = Status Review
13 = Available Networks
14 = Preferred Networks
22 = Select Keypad Tones
25 = Require SIM Card PIN
26 = Language Selection
32 = Repetitive Timer
33 = Single Alert Timer
34 = Set IN-Call Display
35 = Show Call Timers
36 = Show Call Charges
37 = Call Charge Settings
38 = Reset All Timers
43 = Reset All Timers
45 = Show Last Call
46 = Total For All Calls
47 = Lifetime Timer
51 = Change Unlock Code
52 = Master Reset
53 = Master Clear (Warning!! May result in deleting the Message Editor!!!)
54 = New Security Code
55 = Automatic Lock
63 = Battery Saving Mode

Free call tip

1 Enter the phone number
2 Enter OK
3 Type *#06#
4 Press Button C
5 And finally press the button for power off.

You should now be able to talk without being billed.


Motorola 930

The 54# Tip:

Type 1#, 2#........54# on the keypad (when you're not in the menu) to get the phone number used for with this key when speed dialing.





Motorola 6200
--------------



(Note: pause means the * key held in until box appears)
To activate RBS type: [pause] [pause] [pause] 1 1 3
[pause] 1 [pause] [ok]
You now have to press the [MENU] and scroll to the 'Eng
Field Options' function with the keys, and enable it.

De-activate RBS

To de-activate RBS type: [pause] [pause] [pause] 1 1 3
[pause] 0 [pause] [ok]
This only works with some versions of software.

These countries has been reported working:

UK (Orange)
AU

What's the use of RBS:

Get Distance From Base Station - Place a call, when it
is answered, press [MENU] until 'Eng Field Option' is
displayed, press [OK], select 'Active Cell', press [OK],
press [MENU] until 'Time Adv xxx' appears, where xxx is
a number. Multiply this number by 550, and the result is
the distance from the RBS (Radio Base Station), in
meters.

Get Signal Quality - press [MENU] until 'Eng Field
Option' is displayed, press [OK], select 'Active Cell',
press [OK], press [MENU] until 'C1' appears. This is the
signal quality. If it becomes negative for longer than 5
seconds, a new cell is selected.

Pin Outs

Numbered left to right, keypad up, battery down

1. Audio Ground
2. V+
3. True data (TD) (input)
4. Downlink - Complimentary data (CD) (input)
5. Uplink - Return data (RD) (output)
6. GND
7. Audio Out - on/off
8. Audio In
9. Manual Test - ???
10. Battery Feedback
11. Antenna connector






Motorola 7500
-------------



(Note: pause means the * key held in until box appears)
To activate RBS type: [pause] [pause] [pause] 1 1 3
[pause] 1 [pause] [ok]
You now have to press the [MENU] and scroll to the 'Eng
Field Options' function with the keys, and enable it.

De-activate RBS

To de-activate RBS type: [pause] [pause] [pause] 1 1 3
[pause] 0 [pause] [ok]
This only works with some versions of software.

These countries has been reported working:

IT (model: F16 HW: 5.2 SW: 2.1)


What's the use of RBS:

Get Distance From Base Station - Place a call, when it
is answered, press [MENU] until 'Eng Field Option' is
displayed, press [OK], select 'Active Cell', press [OK],
press [MENU] until 'Time Adv xxx' appears, where xxx is
a number. Multiply this number by 550, and the result is
the distance from the RBS (Radio Base Station), in
meters.

Get Signal Quality - press [MENU] until 'Eng Field
Option' is displayed, press [OK], select 'Active Cell',
press [OK], press [MENU] until 'C1' appears. This is the
signal quality. If it becomes negative for longer than 5
seconds, a new cell is selected.

Pin Outs
Numbered right to left, keypad up, battery down looking

1. Gnd
2. Pos
3. True data (TD) (input)
4. Complimentary data (CD) (input)
5. Return data (RD) (output)
6. Audio gnd
7. Audio out
8. Audioin




Motorola 8200
--------------



(Note: pause means the * key held in until box appears)
To activate RBS type: [pause] [pause] [pause] 1 1 3
[pause] 1 [pause] [ok]
You now have to press the [MENU] and scroll to the 'Eng
Field Options' function with the keys, and enable it.

De-activate RBS

To de-activate RBS type: [pause] [pause] [pause] 1 1 3
[pause] 0 [pause] [ok]
This only works with some versions of software.

These countries has been reported working:

ES, AU, NL, BE


What's the use of RBS:

Get Distance From Base Station - Place a call, when it
is answered, press [MENU] until 'Eng Field Option' is
displayed, press [OK], select 'Active Cell', press [OK],
press [MENU] until 'Time Adv xxx' appears, where xxx is
a number. Multiply this number by 550, and the result is
the distance from the RBS (Radio Base Station), in
meters.

Get Signal Quality - press [MENU] until 'Eng Field
Option' is displayed, press [OK], select 'Active Cell',
press [OK], press [MENU] until 'C1' appears. This is the
signal quality. If it becomes negative for longer than 5
seconds, a new cell is selected.

Pin Outs

Numbered right to left, keypad up, battery down looking

1. Audio Ground
2. V+
3. True data (TD) (input)
4. Downlink - Complimentary data (CD) (input)
5. Uplink - Return data (RD) (output)
6. GND
7. Audio Out - on/off
8. Audio In
9. Manual Test - ???
10. Battery Feedback
11. Antenna connector





Motorola 8400
-------------



(Note: pause means the * key held in until box appears)
To activate RBS type: [pause] [pause] [pause] 1 1 3
[pause] 1 [pause] [ok]
You now have to press the [MENU] and scroll to the 'Eng
Field Options' function with the keys, and enable it.

De-activate RBS

To de-activate RBS type: [pause] [pause] [pause] 1 1 3
[pause] 0 [pause] [ok]
This only works with some versions of software.

These countries has been reported working:

ES, AU, NL, BE


What's the use of RBS:

Get Distance From Base Station - Place a call, when it
is answered, press [MENU] until 'Eng Field Option' is
displayed, press [OK], select 'Active Cell', press [OK],
press [MENU] until 'Time Adv xxx' appears, where xxx is
a number. Multiply this number by 550, and the result is
the distance from the RBS (Radio Base Station), in
meters.

Get Signal Quality - press [MENU] until 'Eng Field
Option' is displayed, press [OK], select 'Active Cell',
press [OK], press [MENU] until 'C1' appears. This is the
signal quality. If it becomes negative for longer than 5
seconds, a new cell is selected.

Pin Outs

Numbered right to left, keypad up, battery down looking

1. Audio Ground
2. V+
3. True data (TD) (input)
4. Downlink - Complimentary data (CD) (input)
5. Uplink - Return data (RD) (output)
6. GND
7. Audio Out - on/off
8. Audio In
9. Manual Test - ???
10. Battery Feedback
11. Antenna connector





Motorola 8700
--------------



*#06# for checking the IMEI (International Mobile Equipment Identity)

Activate RBS

(Note: pause means the * key held in until box appears)
To activate RBS type: [pause] [pause] [pause] 1 1 3
[pause] 1 [pause] [ok]
You now have to press the [MENU] and scroll to the 'Eng
Field Options' function with the keys, and enable it.

De-activate RBS

To de-activate RBS type: [pause] [pause] [pause] 1 1 3
[pause] 0 [pause] [ok]
This only works with some versions of software.

These countries has been reported working:

AU, IT, SG, DE, ES, ZA

What's the use of RBS:

Get Distance From Base Station - Place a call, when it
is answered, press [MENU] until 'Eng Field Option' is
displayed, press [OK], select 'Active Cell', press [OK],
press [MENU] until 'Time Adv xxx' appears, where xxx is
a number. Multiply this number by 550, and the result is
the distance from the RBS (Radio Base Station), in
meters.

Get Signal Quality - press [MENU] until 'Eng Field
Option' is displayed, press [OK], select 'Active Cell',
press [OK], press [MENU] until 'C1' appears. This is the
signal quality. If it becomes negative for longer than 5
seconds, a new cell is selected.





Motorola CD 160
---------------



Press menu and type one of these numbers and press OK:

11 = Status Review
13 = Available Networks
14 = Preferred Networks
22 = Select Keypad Tones
25 = Require SIM Card PIN
26 = Language Selection
32 = Repetitive Timer
33 = Single Alert Timer
34 = Set IN-Call Display
35 = Show Call Timers
36 = Show Call Charges
37 = Call Charge Settings
38 = Reset All Timers
43 = Reset All Timers
45 = Show Last Call
46 = Total For All Calls
47 = Lifetime Timer
51 = Change Unlock Code
52 = Master Reset
53 = Master Clear (Warning!! May result in deleting the Message Editor!!!)
54 = New Security Code
55 = Automatic Lock
63 = Battery Saving Mode

Free call tip

1 Enter the phone number
2 Enter OK
3 Type *#06#
4 Press Button C
5 And finally press the button for power off.

You should now be able to talk without being billed.





Motorola CD 520
----------------



Press menu and type one of these numbers and press OK:

11 = Status Review
13 = Available Networks
14 = Preferred Networks
22 = Select Keypad Tones
25 = Require SIM Card PIN
26 = Language Selection
32 = Repetitive Timer
33 = Single Alert Timer
34 = Set IN-Call Display
35 = Show Call Timers
36 = Show Call Charges
37 = Call Charge Settings
38 = Reset All Timers
43 = Reset All Timers
45 = Show Last Call
46 = Total For All Calls
47 = Lifetime Timer
51 = Change Unlock Code
52 = Master Reset
53 = Master Clear (Warning!! May result in deleting the Message Editor!!!)
54 = New Security Code
55 = Automatic Lock
63 = Battery Saving Mode

Free call tip

1 Enter the phone number
2 Enter OK
3 Type *#06#
4 Press Button C
5 And finally press the button for power off.

You should now be able to talk without being billed.





Motorola d460
--------------



#06# for checking the IMEI (International Mobile Equipment Identity)

Activate RBS

(Note: pause means the * key held in until box appears)
To activate RBS type: [pause] [pause] [pause] 1 1 3
[pause] 1 [pause] [ok]
You now have to press the [MENU] and scroll to the 'Eng
Field Options' function with the keys, and enable it.

De-activate RBS

To de-activate RBS type: [pause] [pause] [pause] 1 1 3
[pause] 0 [pause] [ok]
This only works with some versions of software.

What's the use of RBS:

Get Distance From Base Station - Place a call, when it
is answered, press [MENU] until 'Eng Field Option' is
displayed, press [OK], select 'Active Cell', press [OK],
press [MENU] until 'Time Adv xxx' appears, where xxx is
a number. Multiply this number by 550, and the result is
the distance from the RBS (Radio Base Station), in
meters.

Get Signal Quality - press [MENU] until 'Eng Field
Option' is displayed, press [OK], select 'Active Cell',
press [OK], press [MENU] until 'C1' appears. This is the
signal quality. If it becomes negative for longer than 5
seconds, a new cell is selected.





Motorola V3688
---------------



#06# for checking the IMEI (International Mobile Equipment Identity)

Enhanced Full Rate Codec (EFR):

To Enable EFR press [][][] 119 [] 1 [] OK.
To Disable EFR press [][][] 119 [] 0 [] OK

NOTE: Nothing appears on Screen.





Ericsson Mobile Secret Codes:


T10

*#06# for checking the IMEI (International Mobile Equipment Identity)

>*<<*<* for checking the firmware revision information (software release)

>*<<*<*>> n-row text strings. if pressing yes you can check the phones text programming in currently selected language.

Shortcut for Last Dialed call menu

If you for some reason don't want to enter the 'Last Dialed calls menu' by using the 'YES' key you can use the following key
stroke instead: First '0' then '#'.

Access menu without Sim card

To access to the menu in your phone without having a card inside do the following: type **04*0000*0000*0000# When display say "Wrong Pin" press NO and you have access to the all menus: Info, Access, Settings, Calculator, Clock, Keylock On?, Mail, Phone book. NOTE if you try this on your phone may stop at Keylock On? menu and you´ll have to take your battery out to turn the phone on again. And this will not care about Phone lock!

A way to (un)lock your cell phone on to the network(subset):
1. Press <**<
2. Then on the display appear and give you two choices: Lock to Network ? and Lock to Network subset? (Use arrow keys to select)
3. Enter the NCK number (code is provided by the SP)
4. You have 5 attemps to do this
5. Then your cell phone will work 'only' with the network

Warning: The Service Provider (SP) Lock menu is used to lock the cell phone to the SP's SIM card. Once the cell phone is locked to a specific operator, if one inserts a SIM card from a different operator the phone will refuse to accept it! The cell phone will however accept another SIM card from the same operator. To activate/deactivate this lock one needs a special secret code that is not available to the end user. Your phone can be locked to a service provider FOREVER by doing this! If an invalid code is entered all five times, the menu will exit and be deactivated! Any further attempt to activate the NCK/NSCK lock Menu will result in the response "Not allowed"! However the NCK/NSCK lock can be recover through a direct clearing in the EEPROM.

Message Report

When you writing a message, place at the start of it the code *0# and continue with your message. It's job is like nokias report. It gives you information about the sended message.

T18

*#06# for checking the IMEI (International Mobile Equipment Identity) Information you get from the IMEI:

XXXXXX XX XXXXXX X

TAC FAC SNR SP

TAC = Type approval code
FAC = Final assembly code
SNR = Serial number
SP = Spare

To access SIM-Locking menu of your phone, press: < * [CLR] <
Be careful or you may lock your phone.

Message Report

When you writing a message, place at the start of it the code *0# and continue with your message. It's job is like nokias report. It gives you information about the sended message.

T28

*#06# for checking the IMEI (International Mobile Equipment Identity)

>*<<*<* for checking the firmware revision information (software release)

>*<<*<*> 1-row text strings. if pressing yes you can check the phones text programming in currently selected language.

>*<<*<*>> n-row text strings. if pressing yes you can check the phones text programming in currently selected language.

The Service Provider (SP) Lock

The Service Provider (SP) Lock menu is used to lock the cell phone to the SP's SIM card. Once the cell phone is locked to a specific operator, if one inserts a SIM card from a different operator the phone will refuse to accept it! The cell phone will however accept another SIM card from the same operator.

To activate/deactivate this lock one needs a special secret code that is not available to the end user.

Here is how to activate the menu:

<**< Lock to Network? if pressing yes you have 5 attempts to enter NCK.

<**<< Lock to Network subset? if pressing yes you have 5 attempts to enter NSCK.

Warning: Your phone can be locked to a service provider FOREVER by doing this! If an invalid code is entered all five times, the menu will exit and be deactivated! Any further attempt to activate the NCK/NSCK lock Menu will result in the response "Not allowed"! However the NCK/NSCK lock can be recover through a direct clearing in the EEPROM.

Shortcut for Last Dialed call menu

If you for some reason don't want to enter the 'Last Dialed calls menu' by using the 'YES' key you can use the following key
stroke instead: First '0' then '#'.

Message Report

When you are writing a message, place at the start of it the code *0# and continue with your message. It's job is like nokias report. It gives you information about the sended message.



388

*#06# for checking the IMEI (International Mobile Equipment Identity)

*#0000# to reset the phones menu-language to English.

>*<<*<* for checking the firmware revision information (software release)

>*<<*<*> 1-row text strings. if pressing yes you can check the phones text programming in currently selected language.(298 entries)

>*<<*<*>> n-row text strings. if pressing yes you can check the phones text programming in currently selected language.(160 entries?)

The Service Provider (SP) Lock menu is used to lock the cell phone to the SP's SIM card. Once the cell phone is locked to a specific operator, if one inserts a SIM card from a different operator the phone will refuse to accept it! The cell phone will however accept another SIM card from the same operator.

To activate/deactivate this lock one needs a special secret code that is not available to the end user. (not even to you... or is it ? in case please let me know!)

<**< Lock to Network? if pressing yes you have 5 attempts to enter NCK.

<**<< Lock to Network subset? if pressing yes you have 5 attempts to enter NSCK.

Warning: Your phone can be locked to a service provider FOREVER by doing this! If an invalid code is entered all five times,the menu will exit and be deactivated! Any further attempt to activate the NCK/NSCK lock Menu will result in the response "Not allowed"! However the NCK/NSCK lock can be recover through a direct clearing in the EEPROM.

Shortcut for Last Dialed call menu...

If you for some reason don't want to enter the 'Last Dialed calls menu' by using the 'YES' key you can use the following key
stroke instead: First '0' then '#'.

Access menu without Sim card ...

To access to the menu in your phone without having a card inside do the following: type **04*0000*0000*0000# When display say "Wrong Pin" press NO and you have access to the all menus: Info, Access, Settings, Calculator, Clock, Keylock On?,Mail, Phone book. NOTE if you try this on the GH688 your phone may stop at Keylock On? menu and you´ll have to take your battery out to turn the phone on again.

GA628

*#06# for checking the IMEI (International Mobile Equipment Identity)

*#0000# to reset the phones menu-language to English.

*#103# then YES Time and date will be shown.

>*<<*<* for checking the firmware revision information (software release)

>*<<*<*> 1-row text strings. if pressing yes you can check the phones text programming in currently selected language.(298 entries)

>*<<*<*>> n-row text strings. if pressing yes you can check the phones text programming in currently selected language.(160 entries?)

The Service Provider (SP) Lock

The Service Provider (SP) Lock menu is used to lock the cell phone to the SP's SIM card. Once the cell phone is locked to a specific operator, if one inserts a SIM card from a different operator the phone will refuse to accept it! The cell phone will however accept another SIM card from the same operator.

To activate/deactivate this lock one needs a special secret code that is not available to the end user.

Here is how to activate the menu:

<**< Lock to Network? if pressing yes you have 5 attempts to enter NCK.

<**<< Lock to Network subset? if pressing yes you have 5 attempts to enter NSCK.

Warning: Your phone can be locked to a service provider FOREVER by doing this! If an invalid code is entered all five times,the menu will exit and be deactivated! Any further attempt to activate the NCK/NSCK lock Menu will result in the response "Not allowed"! However the NCK/NSCK lock can be recover through a direct clearing in the EEPROM.

Shortcut for Last Dialed call menu

If you for some reason don't want to enter the 'Last Dialed calls menu' by using the 'YES' key you can use the following key
stroke instead: First '0' then '#'.

Bat. level indicator when turned OFF

When the phone is turned off and the phone is not changing - the bat. level can be seen for a short period of time by pressing the 'NO' key quick once (it has to be quick!) and then wait for about 2 sec. The bat. level will now be shown in the display at its normal position.

Access menu without Sim card

To access to the menu in your phone without having a card inside do the following: type **04*0000*0000*0000# When display say "Wrong Pin" press NO and you have access to the all menus: Info, Access, Settings, Calculator, Clock, Keylock On?,Mail, Phone book. NOTE if you try this on your phone may stop at Keylock On? menu and you´ll have to take your battery out to turn the phone on again.

Alarm Clock Menu

Go to MissedCall Empty the list Press the -> key for a second or two The option Menu size turns up Choose 'yes' and go from there.

An alarm clock turned up too but it never rang. I think this was because there is no clock in the phone.

Free phone calls using the GA628

This trick has only been reported working on PREPAID GSM CARDS and in some countries and with some sw versions.
The prepaid GSM SIM CARD is a kind of "SIM card" which only has a sertant amount of credit on it (like a normal phonebox telecard)... if it can be traced? - we don't know...

Well..here's the trick you dial the no. normally and press YES. While "connecting" is shown on the screen, the following procedure should be carried out: Press CLR then 0 then # and then NO (twice) so as to switch OFF the phone. You can then still speak on the phone while it is switched off but the SIM card does not record your calls which will lead to FREE phone calls in some countries.. we hope!!

Another variant of the code

Make a Call, while the phone says Connecting type 083# (the position 83 must be empty! ), when phone says Pos Emtpy, press the NO key and turn off the phone.

If you can make the call with the phone turned off you will face a problem when you need to hang up the phone...the only way for you to do that is remove the battery...???

Hard drive gone bad

The most common problems originate
from corruption of the master boot record, FAT, or directory.
Those are soft problems which can usually be taken care of
with a combination of tools like Fdisk /mbr to refresh the
master boot record followed by a reboot and Norton disk doctor
or Spinneret.

The most common hardware problems are a bad controller, a bad
drive motor, or a bad head mechanism.

1. Can the BIOS see and identify the hard drive correctly? If
it can't, then the hard drives onboard controller is bad.

2. Does the drive spin and maintain a constant velocity? If it
does, that's good news. The motor is functioning.

3. If the drive surges and dies, the most likely cause is a
bad controller (assuming the drive is cool). A gate allowing
the current to drive the motor may not be staying open. The
drive needs a new controller.

4. Do you hear a lot of head clatter when the machine is
turned on and initialized (but before the system attempts to
access the hard drive). Head clatter would indicate that the
spindle bearings are sloppy or worn badly. Maybe even lose and
flopping around inside.

5. There is always the possibility that the controller you are
using in the machine has gone south.

1. If the drive spins, try booting to the A> prompt, run Fdisk
and check to see if Fdisk can see a partition on the hard
drive. If Fdisk can see the partition, that means that it can
access the drive and that the controller electronics are
functioning correctly. If there is no head clatter, it may be
just a matter of disk corruption which commonly occurs when a
surge hits you machine and overwhelms the power supply voltage
regulator. It commonly over whelms the system electronics
allowing an EM pulse to wipe out the master boot record, file
allocations table, and primary directory. Fdisk can fix the
master boot record and Norton Disk Doctor can restore the FAT
and Directory from the secondaries.
2. The drive spins but Fdisk can't see it. Try the drive in
another system and repeat the test to confirm that Fdisk can't
read through the drives onboard controller. If it sees it in
another system, then your machines hard drive interface is
bad. You can try an upgraded or replacement controller card
like a Promise or CMD Technologies (there are others) in you
machine after disabling the integrated controller in the BIOS,
but if the integrated controller went south, it may just be
symptomatic of further failures and you'd be wise to replace
the motherboard. Trying the drive in another machine also
eliminates the variable that your machines 12 volt power
output being bad

3. If you get head clatter but a constant velocity on the
drive motor (no surging), you might try sticking the hard
drive in the freezer for about 12 hours. This is an old trick
from back in the days of the MFM/ESDI driver era. This can
cause the drive components to shrink enough to make the track
marker align with the tracks. We don't see that kind of
platter spindle wear much anymore, but back in the old days,
the balancing and bearings weren't as good. Still, under the
right circumstances, it might help. It would depend on how old
the drive is and how many hours of wear have occurred. You
have to be quick to get your info off the drive when it works.
Back then, the drives were much smaller, so there wasn't so
much to copy. So, go after the important data first.

4. The drive doesn't spin. Either the onboard controller is
bad or the motor is bad (assuming you did try the drive in
another machine). It's time to hit the net and local
independent shops to see if you can locate another drive of
the same make and model that's good. Since the drive is
probably an older drive and no longer in distribution, your
best bet is to find an identical used drive. If you know
someone with the same make and model, you might be wise to try
and persuade them to sell you their drive with an offer of
providing them with a free upgraded drive. If you can locate
an identical drive, start with the controller replacement ...
this is the simplest and least invasive. If swapping the
controller doesn't produce the desire result, you can tear
into the drive and swap the motors. While you have both drive
opened up to accomplish this, scrutinize the platters, heads
and armatures. You might even hook the drive up and power it
from a system with both drives attached. This way, you could
see anything that deviates between the actions of both drives
when they are initialized. Swapping patters is unlikely to
produce any positive result. They are a balanced system like
the tires on your car and I suspect that the balance will be
different for each drive as will other variables.

5. There's always Ontrack Corp. who will attempt to recoup
your info starting at $500 and going up from there. They don't
fix and return the drive either.

If the info is all that important to you, I would seek some
professional and experience technician in your locality who
makes his living from servicing and building computer systems
... not just selling them. If you have had much experience
salvaging information from bad hard drives, your likelihood of
success is low. In the case of soft corruption, all utilities
have their eccentricities. Often times, Norton Disk Doctor
will go too far (if you let it). It's wise to just let those
utilities small steps and then have a look at the drive and
see if you can copy it off. Norton will go so far as to rename
directories and files, and even delete them or break them up
into fragments which are useless.
_________________

debug: Learn how to crack windows, programs ect manually

Debug is a program that comes with modern versions of DOS (I do not know when I started shipping out with DOS). Anyway, all Windows users should have it already.

It's a great tool for debuging programs, unassembling and cracking, and reading "hidden" memory areas like the boot sector, and much more.

The following was copied from an assembly tutorial who's author we cannot credit, because we have no idea who he is.

Get into DOS and type "debug", you will get a prompt like this:
-

now type "?", you should get the following response:
assemble A [address]
compare C range address
dump D [range]
enter E address [list]
fill F range list
go G [=address] [addresses]
hex H value1 value2
input I port
load L [address] [drive] [firstsector] [number]
move M range address
name N [pathname] [arglist]
output O port byte
proceed P [=address] [number]
quit Q
register R [register]
search S range list
trace T [=address] [value]
unassemble U [range]
write W [address] [drive] [firstsector] [number]
allocate expanded memory XA [#pages]
deallocate expanded memory XD [handle]
map expanded memory pages XM [Lpage] [Ppage] [handle]
display expanded memory status XS

Lets go through each of these commands:
Assemble:

-a
107A:0100

At this point you can start assembling some programs, just like using a assembler. However the debug assembler is very limited as you will probably notice. Lets try to enter a simple program:

-a
107A:0100 MOV AH,02
107A:0102 MOV DL,41
107A:0104 INT 21
107A:0106 INT 20
-g
A

Program terminated normally

That's the same program we did at the end of the previous chapter. Notice how you run the program you just entered with "g", and also notice how the set-up part is not there? That's because debug is just too limited to support that.
Another thing you can do with assemble is specify the address at which you want to start, by default this is 0100 since that's where all .COM files start.
Compare:

Compare takes 2 block of memory and displays them side by side, byte for byte. Lets do an example. Quite out of debug if you haven't already using "q". Now type "debug c:\command.com"

-c 0100 l 8 0200
10A3:0100 7A 06 10A3:0200

This command compared offset 0100 with 0200 for a length of 8 bytes. Debug responded with the location that was DIFFERENT. If 2 locations were the same, debug would just omit them, if all are the same debug would simply return to the prompt without any response.
Dump:

Dump will dump a specified memory segment. To test it, code that assembly program again:

C:\>debug
-a
107A:0100 MOV AH,02
107A:0102 MOV DL,41
107A:0104 INT 21
107A:0106 INT 20
-d 0100 l 8
107A:0100 B4 02 B2 41 CD 21 CD 20
...A.!.

The "B4 02 B2 41 CD 21 CD 20" is the program you just made in machine language.

B4 02 = MOV AH,02
B2 41 = MOV DL,41
CD 21 = INT 21
CD 20 = INT 20

The "...A.!." part is your program in ASCII. The "." represent non-printable characters. Notice the A in there.
Enter:

This is one of the hard commands. With it you can enter/change certain memory areas. Lets change our program so that it prints a B instead of an A.
-e 0103 <-- edit program at segment 0103
107A:0103 41.42 <-- change 41 to 42
-g
B

Program terminated normally
-
Wasn't that amazing?
Fill:

This command is fairly useless, but who knows....
It fills the specified amount of memory with the specified data. Lets for example clear out all memory from segment 0100 to 0108, which happens to be our program.
-f 0100 l 8 0 <-- file offset 0100 for a length of 8 bytes with 0
-d 0100 l 8 <-- verify that it worked
107A:0100 00 00 00 00 00 00 00 00 .......
Yep, it worked.
Go:

So far we used go (g) to start the program we just created. But Go can be used for much more. For example, lets say we want to execute a program at 107B:0100:
-r CS <-- set the CS register to point to 107B
CS 107A
:107B
-g =100

You can also set breakpoints.
-a <-- enter our original program so we have something
107A:0100 MOV AH,02 to work with
107A:0102 MOV DL,41
107A:0104 INT 21
107A:0106 INT 20
-g 102 <-- set up a break point at 107A:0102

At this point the program will stop, display all registers and the current instruction.
Hex:

This can be very useful. It subtracts and adds two hexadecimal values:
-h 2 1
0003 0001 <-- 2h + 1+ = 3h and 2h - 1h = 1h

This is very useful for calculating a programs length, as you will see later.
Input:

This is one of the more advanced commands, and I decided not to talk about it too much for now. It will read a byte of data from any of your computers I/O ports (keyboard, mouse, printer, etc).

-i 3FD
60
-

Your data may be different.
In case you want to know, 3FD is Com port 1, also known as First Asynchronous Adapter.
Load:

This command has 2 formats. It can be used to load the filename specified with the name command (n), or it can load a specific sector.

-n c:\command.com
-l

This will load command.com into debug. When a valid program is loaded all registers will be set up and ready to execute the program.
The other method is a bit more complicated, but potential also more usefull. The syntax is

L <address> <drive letter/> <sector> <amount to load>
-l 100 2 10 20

This will load starting at offset 0100 from drive C (0 = A, 1 = B, 2 = C, etc), sector 10h for 20h sectors. This can be useful for recovering files you deleted.
Move:

Move takes a byte from the starting address and moves it to the destination address. This is very good to temporary move data into a free area, than manipulate it without having to worry about affecting the original program. It is especially useful if used in conjunction with the r command to which I will get later. Lets try an example:
-a <-- enter our original program so we have something
107A:0100 MOV AH,02 to work with
107A:0102 MOV DL,41
107A:0104 INT 21
107A:0106 INT 20
-m 107A:0100 L 8 107B:0100 <-- more 8 bytes starting from 107A:0100 into 107B:0100
-e 107B:0103 <-- edit 107B:0103
107B:0103 41.42 <-- and change it 42 (
-d 107A:0100 L 8 <-- make sure it worked
107A:0100 B4 02 B2 41 CD 21 CD 20 ...A.!.
-d 107B:0100 L 8
107A:0100 B4 02 B2 42 CD 21 CD 20 ...B.!.
-m 107B:0100 L 8 107A:0100 <-- restore the original program since we like the changes.
Name:

This will set debug up with a filename to use for I/O commands. You have to include the file extension, and you may use addition commands:

-n c:\command.com
Output:

Exactly what you think it is. Output sends stuff to an I/O port. If you have an external modem with those cool lights on it, you can test this out. Find out what port your modem is on and use the corresponding hex number below:

Com 1 = 3F8 - 3FF (3DF for mine)
Com 2 = 2F8 - 2FF
Com 3 = ??? - ??? (if someone knows, please let me know)

Now turn on the DTA (Data Terminal Ready) bit by sending 01h to it:
-o XXX 1 <-- XXX is the com port in hex

As soon as you hit enter, take a look at your modem, you should see a light light up. You can have even more fun with the output command. Say someone put one of those BIOS passwords on "your" computer. Usually you'd have to take out the battery to get rid of it, but not anymore:

MI/AWARD BIOS
-o 70 17
-o 71 17

QPHOENIX BIOS
-o 70 FF
-o 71 17

QGENERIC
-o 70 2E
-o 71 FF

These commands will clear the BIOS memory, thus disabling the password.
Proceed:

Proceeds in the execution of a program, usually used together withy Trace, which I will cover later. Like the go command, you can specify an address from which to start

using =address
-p 2

Debug will respond with the registers and the current command to be executed.
Quite:

This has got to be the most advanced feature of debug, it exits debug!

-q
Register:

This command can be used to display the current value of all registers, or to manually set them. This is very useful for writing files as you will see later on.

-r AX
AX: 011B
:5
-
Search:

Another very useful command. It is used to find the occurrence of a specific byte, or series of bytes in a segment. The data to search for can by either characters, or a hex value. Hex values are entered with a space or comma in between them, and characters are enclosed with quotes (single or double). You can also search for hex and characters with the same string:
-n c:\command.com <-- load command.com so we have some data to search in
-l
-s 0 l 0 "MS-DOS" <-- search entire memory block for "MS-DOS"
10A3:39E9 <-- found the string in 10A3:39E9

NOTE: the search is case sensitive!
Trace:

This is a truly great feature of debug. It will trace through a program one instruction at a time, displaying the instruction and registers after each. Like the go command you can specify where to start executing from, and for how long.
-a <-- yes, this thing again
107A:0100 MOV AH,02
107A:0102 MOV DL,41
107A:0104 INT 21
107A:0106 INT 20
-t =0100 8

If you leave out the amount of instructions that you want to trace, you can use the proceed (p) to continue the execution as long as you want.
Unassemble:

Unassembles a block of code. Great for debugging (and cracking)
-u 100 L 8 <-- unassembles 8 bytes starting at offset 100
107A:0100 MOV AH,02 <-- debut's response
107A:0102 MOV DL,41
107A:0104 INT 21
107A:0106 INT 20
Write:

This command works very similar to Load. It also has 2 ways it can operate: using name, and by specifying an exact location. Refer to back to Load for more information.

NOTE: The register CX must be set the file size in order to write!
NOTE: Write will not write .EXE or .HEX files.[SIZE=7][SIZE=14]

DirectX explained

Ever wondered just what that enigmatic name means?

Gaming and multimedia applications are some of the most satisfying programs you can get for your PC, but getting them to run properly isn’t always as easy as it could be. First, the PC architecture was never designed as a gaming platform. Second, the wide-ranging nature of the PC means that one person’s machine can be different from another. While games consoles all contain the same hardware, PCs don’t: the massive range of difference can make gaming a headache.


To alleviate as much of the pain as possible, Microsoft needed to introduce a common standard which all games and multimedia applications could follow – a common interface between the OS and whatever hardware is installed in the PC, if you like. This common interface is DirectX, something which can be the source of much confusion.

DirectX is an interface designed to make certain programming tasks much easier, for both the game developer and the rest of us who just want to sit down and play the latest blockbuster. Before we can explain what DirectX is and how it works though, we need a little history lesson.

DirectX history
Any game needs to perform certain tasks again and again. It needs to watch for your input from mouse, joystick or keyboard, and it needs to be able to display screen images and play