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Article ID: 946501 - Last Review: October 8, 2011 - Revision: 3.0

Support for Windows XP Service Pack 2 ends on July 13, 2010. The Client Migration ( topic in the Windows 2000 End-of-Support Solution Center ( is a starting point for planning your migration strategy from Windows XP SP2. For more information, refer to the Microsoft Support Lifecycle Policy ( .

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When an application exits on a Windows XP SP2-based multi-core computer, an access violation occurs.


This issue occurs because of an error in the Msctf component. An access violation may occur when the Language bar is removed in the cleanup code of this component.


Update information

The following file is available for download from the Microsoft Download Center:

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Download the update for Windows XP SP2 x86-based versions (KB946501) package now. (

For more information about how to download Microsoft support files, click the following article number to view the article in the Microsoft Knowledge Base:
119591  ( ) How to obtain Microsoft support files from online services
Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help prevent any unauthorized changes to the file.


To install this update, you must have Windows XP Service Pack 2 (SP2) installed.

Restart requirement

You have to restart the computer after you apply this update.

Hotfix replacement information

This update does not replace any other previously released updates.

File information

The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.
Windows XP with SP2, x86-based versions
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File nameFile versionFile sizeDateTimePlatform


Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.


For more information, click the following article number to view the article in the Microsoft Knowledge Base:
824684  ( ) Description of the standard terminology that is used to describe Microsoft software updates


For more information about the similar issue in Windows Server 2003, click the following article number to view the article in the Microsoft Knowledge Base:
919881  ( ) An access violation occurs when a program is automatically stopped on a Windows Server 2003-based computer

  • Microsoft Windows XP Service Pack 2, when used with:
    • Microsoft Windows XP Home Edition
    • Microsoft Windows XP Professional
atdownload kbexpertiseadvanced kbfix kbqfe KB946501
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