Microsoft KB Archive/883336

= You receive an Event ID 25109 &quot;Class not registered&quot; event in the application event log when computer discovery runs in Microsoft Operations Manager 2005 =

Article ID: 883336

Article Last Modified on 10/27/2006

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APPLIES TO


 * Microsoft Operations Manager (MOM) 2005

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SYMPTOMS
After you install Microsoft Operations Manager (MOM) 2005 on a Microsoft Windows Server 2003 computer, computer discovery fails, and the following event is logged in the application event log: Event ID: 25109

Description:

Unrecoverable database errors occurred during duplicate alert checking or Insertion.... Details: TDasObject::CallDasMethod(Alert2BulkInsertAlternate) MOMService(B).mc8: Err:Could not create CLSID_DiscoveryDriver objecthr=0x80040154, 'Class not registered'



CAUSE
This problem is caused by an error in the security code handling of Microsoft Internet Explorer 6.0.



RESOLUTION
To resolve this problem, apply the MS04-048 security update.

For additional information about the MS04-048 security update, click the following article number to view the article in the Microsoft Knowledge Base:

824145 MS04-048: November 2003 cumulative security update for Internet Explorer



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

Keywords: kbopmaninterop kbopman2005bug kbtshoot kbbug kberrmsg kbevent kbupgrade kbperformance kbinterop kbsecurity kbdiscovery kbfix KB883336

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