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An application that uses the Sxs.dll file crashes when you run the application on a Windows XP-based computer

Support for Windows XP has ended

Microsoft ended support for Windows XP on April 8, 2014. This change has affected your software updates and security options. Learn what this means for you and how to stay protected.

SYMPTOMS
When you run an application that uses the Sxs.dll file on a Windows XP-based computer, the application may crash.
CAUSE
This problem occurs because of an access violation that is caused by a heap corruption in the Sxs.dll file. When you run the application, the SxsFindClrClassInformation function is called two times. The first call is to calculate how much buffer the function needs. The second call is to write the data into the buffer. However, the number that the SxsFindClrClassInformation function calculates is smaller than the number that the function writes. Therefore, the heap is corrupted.
RESOLUTION

Update information


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


Update for Windows XP (KB943232)


DownloadDownload the Update for Windows XP (KB943232) 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.

Prerequisites

Windows XP Service Pack 2 or Windows XP Service Pack 3 must be installed before you apply this update.

Restart requirement

You must restart the computer after you apply this update.

Update replacement information

This update does not replace a previously released update.

File information

The English version of this update 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.
File nameFile versionFile sizeDateTimePlatformSP requirementService branch
Sxs.dll5.1.2600.3466713,21623-Oct-200813:06x86SP2SP2QFE
Sxs.dll5.1.2600.5699713,21623-Oct-200813:39x86SP3SP3QFE
STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
MORE INFORMATION
For more information about software update terminology, 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
Properties

Article ID: 943232 - Last Review: 10/11/2011 20:19:00 - Revision: 3.0

  • Microsoft Windows XP Professional
  • Microsoft Windows XP Home Edition
  • kbexpertiseadvanced kbqfe kbhotfixserver KB943232
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