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• Set Accessibility Features for People Who Are Blind or Who Have Low Vision in Windows XP
• Accessibility Keyboard Shortcuts
• Accessibility Options - The redesigned Windows XP Control Panel now contains a section called Accessibility Options, the ninth of the nine categories under Category View in Control Panel.

Accessing Desktop and Taskbar Settings

Accessing Different Methods of Repair Available in Windows XP

Account Changes in Outlook Express

Activate Clear Type - Microsoft states, “With Windows XP, ClearType delivers improved font display resolution over traditional anti-aliasing. It improves readability on color LCD monitors with a digital interface, such as those in laptops and high-quality flat desktop displays. Readability on CRT screens can also be somewhat improved.”

Active Partition - The Computer Does Not Start After You Change the Active Partition by Using the Disk Management Tool

Activate XP from Floppy Diskette - Circumstances arise where you'll need to reinstall Windows XP on your machine when no hardware changes have been made. Rather than go through the reactivation process, create a floppy disk to back up the activation status file. Once XP has been reinstalled the floppy can be used to restore the previous activation status.

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.

Add / Remove Programs

Add or Remove Programs - The redesigned Windows XP Control Panel now contains a section called Add or Remove Programs, the third of the nine categories under Category View in Control Panel.

• "Error 1719. The Windows Installer Service Could Not Be Accessed" Error Message When You Add or Remove Program - When you try to add or remove a program on your Microsoft Windows XP-based computer, you may receive the previous error message.
• You Cannot Reinstall a Program with the Add/Remove Programs Tool - If you install a program that does not create shortcuts, and then uninstall that program with the Add/Remove Programs tool in Control Panel, you may not be able to reinstall that program.
• Remove Invalid Listings from Add/Remove Programs - There are a number of reasons why an application may remain in the Add/Remove Programs list long after the application is gone from your computer. One of the most common reasons is using the uninstaller from the listing on the All Programs section of Start Menu, but whatever the reason it remains there are ways to remove the invalid listing.

Add Computer Management to the XP Desktop

Add Shared Network Drive Buttons to Toolbar

Adjusting Visual Effects

Administrator Password Reset Disk

Administrator Versus User Logon

Alerter Service

Alter When Pending Password Expiration Warning Appears

Appearance and Themes - The redesigned Windows XP Control Panel now contains a section called Appearance and Themes, the first of the nine categories under Category View in Control Panel.

• Eliminate Fade Effect in XP Menus

Appearance Tab in Display Properties

Application

• Application Compatibility Toolkit 2.6 - The Windows Application Compatibility Toolkit 2.6 for Windows XP and Windows Server 2003 contains the tools and documentation you need to design, deploy, and support applications on these platforms. Tools include the latest versions of the Windows Application Verifier that assists developers and testers in locating common compatibility issues during the development cycle, and the Compatibility Administrator that provides access to the necessary compatibility fixes to support legacy applications in Windows.
• Application Freezes When Using File Open Dialog Box
• Application Layer Gateway Service
• Application Management Service
• Applications Not Responding at Shutdown - When an application fails to respond during shutdown a dialog box is displayed prompting the user to either end it now or to wait. Enabling the value AutoEndTasks will take care of the non-responding application without user intervention.

Auto Disconnect for InternetExplorer

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 disables the Auto Reboot bahavior.

Auto-Complete Passwords Not Retained - This is a known issue in Windows 2000 and Windows XP that Microsoft has addressed in the Knowledge Base.

Automatic Boot Disk Optimization [Defrag] - Locates and consolidates fragmented boot files, data files, and folders on local volumes.

Automatic Expanding Trees in Windows Explorer - If Friendly Trees (Expanding Trees) are enabled, clicking on a drive in the left pane of Explorer will automatically expand the tree. When a different drive is clicked, the tree on the previous drive will close and the tree of the newly selected drive will expand.

Automatic Logon to Windows XP - Convenience is one of the major reasons this tweak has become so popular. However, with convenience there is a price, and in this case that price is a lack of security.

Automatic Update for Windows XP

Automatic Updates Service

Availability and Description of Internet Explorer 6 [KB]