Microsoft KB Archive/180854

= Access Violation in Winlogon with Third-Party Gina.dll =

Article ID: 180854

Article Last Modified on 11/1/2006

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APPLIES TO


 * Microsoft Windows NT Server 4.0, Terminal Server Edition
 * Microsoft Windows NT Workstation 4.0 Developer Edition
 * Microsoft Windows NT 4.0 Service Pack 3
 * Microsoft Windows NT Server 4.0 Enterprise Edition

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This article was previously published under Q180854





SYMPTOMS
When you attempt to run the screen saver after a period of inactivity, Winlogon.exe encounters an access violation, and a STOP 0xC000021A message appears on the screen.



CAUSE
This problem only occurs if a third-party Gina.dll file is installed on your computer and if the updated GINA, or any of the libraries with which it is linked, performs window hooking.



RESOLUTION
To resolve this problem, obtain the latest service pack for Windows NT 4.0 or Windows NT Server 4.0, Terminal Server Edition. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

152734 How to Obtain the Latest Windows NT 4.0 Service Pack



STATUS
Microsoft has confirmed that this is a problem in Windows NT 4.0 and Windows NT Server 4.0, Terminal Server Edition. This problem was first corrected in Windows NT 4.0 Service Pack 4.0 and Windows NT Server 4.0, Terminal Server Edition Service Pack 4.

Additional query words: accgina msgina hookproc

Keywords: kbhotfixserver kbqfe kb3rdparty kbbug kbfix kbqfe KB180854

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