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Article ID: 895322 - Last Review: January 15, 2015 - Revision: 4.0

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When you run a custom program that uses context activation on a computer that is running Microsoft Windows XP with Service Pack 1 (SP1), the custom program may unexpectedly stop responding.


This problem occurs if the QueryPathOfRegTypeLib function does not correctly return the fully qualified file name for a type library that was specified in the manifest file.


Hotfix information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site: (
Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.


No prerequisites are required.

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any other hotfixes.

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 tool in Control Panel.
Windows XP, 64-bit versions
   Date         Time   Version        Size       File name      Platform
   11-Mar-2005  11:52  3.50.5020.0      655,360  Asycfilt.dll   IA-64
   11-Mar-2005  11:52  3.50.5020.0    3,969,024  Oleaut32.dll   IA-64
   11-Mar-2005  07:12  3.50.5017.0       17,920  Stdole2.tlb
   11-Mar-2005  11:52  5.1.2600.1643  2,034,176  Sxs.dll        IA-64
   11-Mar-2005  11:55  3.50.5020.0       77,824  Wasycfilt.dll  x86
   11-Mar-2005  11:55  3.50.5020.0      577,536  Woleaut32.dll  x86
   11-Mar-2005  11:55  5.0.5020.0       106,496  Wolepro32.dll  x86
   09-Mar-2005  11:24  3.50.5020.0       17,920  Wstdole2.tlb
   11-Mar-2005  11:55  5.1.2600.1643    683,008  Wsxs.dll       x86
Windows XP, 32-bit versions
   Date         Time   Version        Size     File name
   12-Mar-2005  01:25  3.50.5020.0     77,824  Asycfilt.dll     
   12-Mar-2005  01:25  3.50.5020.0    577,536  Oleaut32.dll     
   12-Mar-2005  01:25  5.0.5020.0     106,496  Olepro32.dll     
   10-Mar-2005  00:54  3.50.5020.0     17,920  Stdole2.tlb
   12-Mar-2005  01:25  5.1.2600.1643  683,008  Sxs.dll


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 a hotfix for the same problem in Windows XP with Service Pack 2, click the following article number to view the article in the Microsoft Knowledge Base:
891117  ( ) FIX: A custom application that uses context activation stops responding in Windows XP with Service Pack 1 or Service Pack 2
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
kbnosurvey kbarchive kbautohotfix kbwinxpsp3fix kbwinxppresp3fix kbfix kbbug kbqfe kbHotfixServer KB895322
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