Microsoft KB Archive/256222

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Event ID 12 After Installing or Upgrading to Windows 2000

Article ID: 256222

Article Last Modified on 2/28/2007


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

This article was previously published under Q256222


When you install or upgrade your computer to Windows 2000, the following Event ID may be logged to the application event log:

Event Type: Error
Event Source: WINMGMT
Event Category: N/A
Event ID: 12

Failed to CoGetClassObject for provider "Microsoft|DSLDAPClassProvider|V1.0". Class not registered (0x80040154).

NOTE: This entry appears only for the first restart; subsequent restarts do not log this event.


This event is logged as a result of a timing condition between Windows Setup and the loading of the Windows Management Instrumentation service (Winmgmt.exe). The error message has no effect on the performance of the computer.


To work around this behavior you can ignore the events or clear the entries by clicking Action, and then clicking Clear all Events.


Microsoft has confirmed this to be a problem in Windows 2000.

Keywords: kbbug kberrmsg kbfaq kbnofix KB256222