Microsoft KB Archive/911193

= FIX: COM+ applications may consume more CPU resources after you apply the MS04-012 security update to a computer that is running Windows 2000 Server or Windows 2000 Professional =

Article ID: 911193

Article Last Modified on 11/22/2007

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APPLIES TO


 * Microsoft Windows 2000 Advanced Server
 * Microsoft Windows 2000 Datacenter Server
 * Microsoft Windows 2000 Professional Edition
 * Microsoft Windows 2000 Server

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SYMPTOMS
After you apply security update MS04-012 to a computer that is running Microsoft Windows 2000 Server or Microsoft Windows 2000 Professional, Microsoft COM+ applications may consume more CPU resources than they consumed before you applied the security update. When this occurs, you may experience slow performance in the COM+ applications and on the whole system.



CAUSE
This problem occurs if COM+ class information is never cached. Therefore, the COM+ applications consume more CPU resources by querying the COM+ catalog.

Note This problem is similar to the problem that is described in Microsoft Knowledge Base article 911650, but it is not the same problem.

This problem is fixed by installing the appropriate COM+ hotfix rollup package, whereas the problem that is described in Microsoft Knowledge Base article 911650 requires that you install the appropriate hotfix and also enable a registry subkey.

This problem applies only to Windows 2000, whereas the problem that is described in Microsoft Knowledge Base article 911650 applies to Windows 2000, Microsoft Windows XP, and Microsoft Windows Server 2003.



Hotfix rollup package information
This problem is fixed in the COM+ hotfix rollup package that is discussed in Microsoft Knowledge Base article 910370. For more information about this hotfix rollup package, click the following article number to view the article in the Microsoft Knowledge Base:

910370 Availability of Windows 2000 Post-Service Pack 4 COM+ 1.0 Hotfix Rollup Package 35



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section.

