This article has been archived. It is offered "as is" and will no longer be updated.
Important This article contains information about how to modify the registry. Make sure that you back up the registry before you modify it. Make sure that you know how to restore the registry if a problem occurs. For more information about how to back up, restore, and modify the registry, click the following article number to view the article in the Microsoft Knowledge Base:
256986 Description of the Microsoft Windows registry
You may receive an error message when you try to install security update 923689 (MS06-078) on Microsoft Windows XP Service Pack 2 (SP2) or when you run Qfecheck.exe after you install security update 923689 (MS06-078).
This issue was resolved on July 10, 2007. This is documented in revision 3.0 of security bulletin MS06-078. No action is required on systems where the security update has been successfully installed. Customers who did experience this known issue and who did not install this security update will be reoffered the security update that is included with security bulletin MS06-078. For more information, visit the following Microsoft Web site:
Warning Serious problems might occur if you modify the registry incorrectly by using Registry Editor or by using another method. These problems might require that you reinstall the operating system. Microsoft cannot guarantee that these problems can be solved. Modify the registry at your own risk.
If you are running Windows XP Service Pack 2, you may receive the following error message when you install security update 923689 (MS06-078):
The software you are installing has not passed Windows Logo testing to verify its compatibility with Windows XP
When this error occurs, Microsoft Windows Media Format Series Runtime will still be updated to the correct version if you continue with the installation. You can prevent this error by changing the Policy DWORD value to 0 in the following registry subkey:
For more information about this issue, click the following article number to view the article in the Microsoft Knowledge Base:
822798 You cannot install some updates or programs
If you are running Windows XP Service Pack 2, and you run the Qfecheck.exe tool after you install security update 923689 (MS06-078), you may receive the following error message:
KB923689: This hotfix should be reinstalled. The following files are not valid in the system catalog: C:\WINDOWS\SYSTEM32\WMVCORE.DLL
When this error message occurs, you must check the file version and the time stamp that is listed in the MS06-078 security bulletin to verify that the correct Wmvcore.dll file has been installed. If the file version and the time stamp are correct, the Wmvcore.dll file has been updated correctly, and you can safely ignore the Qfecheck.exe warning.
Note Reinstallation of the security update will not eliminate the Qfecheck.exe warning.
This article applies to versions of Microsoft Windows Media Format Series Runtime from 7.1 through 9.5 when they are used with the following versions of Microsoft Windows XP Service Pack 2:
Microsoft Windows XP Professional
Microsoft Windows XP Home Edition
923689 MS06-078: Vulnerability in Windows Media Format could allow remote code execution