Microsoft KB Archive/917608

= FIX: An Error event is logged in the System log when you set a COM component to run as the NT AUTHORITY\SYSTEM user on a computer that is running Windows XP =

Article ID: 917608

Article Last Modified on 12/5/2007

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APPLIES TO


 * Microsoft COM+ 1.5
 * Microsoft Windows XP Professional
 * Microsoft Windows XP Home Edition

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SYMPTOMS
On a computer that is running Microsoft Windows XP, you set a Microsoft Component Object Model (COM) component to run as the NT AUTHORITY\SYSTEM user. When you do this, an Error event that resembles the following is logged in the System log: DCOM got error &quot;Logon failure: unknown user name or bad password. &quot; and was unable to logon NT AUTHORITY\SYSTEM in order to run the server:



CAUSE
This problem occurs because Windows XP does not support registering classes from processes that have the RunAs named value set to the NT AUTHORITY\SYSTEM user.



RESOLUTION
To resolve this problem, obtain Windows XP COM+ Hotfix Rollup Package 14. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

922668 Availability of Windows XP COM+ Hotfix Rollup Package 14



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



MORE INFORMATION
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

Additional query words: COM+ RunAs System

Keywords: kbbug kbfix kbqfe kbprb kbwinxppresp3fix KB917608

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