The Computer Hangs If You Call LockWorkstation() While a Screen Saver Is Running

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Article ID: 321343 - View products that this article applies to.
This article was previously published under Q321343
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SYMPTOMS

If you call the LockWorkstation function from a screen saver (or while a screen saver is running), the computer locks as expected. However, the computer no longer responds to the CTRL+ALT+DELETE key combination. When this problem occurs, you must reset the computer.

CAUSE

This problem occurs because Winlogon enters a state in which secure attention sequence (SAS) key sequences are not processed. Other processes on the computer continue to run, and the computer continues to be accessible over the network.

RESOLUTION

Service Pack Information

To resolve this problem, obtain the latest service pack for Microsoft Windows 2000. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
260910 How to Obtain the Latest Windows 2000 Service Pack

Hotfix Information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, submit a request to Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site:
http://support.microsoft.com/contactus/?ws=support
Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language. The English version of this fix should have the following file attributes or later:
   Date         Time   Version        Size       File name
   ----------------------------------------------------------
   03-May-2002  11:46  5.0.2195.5265     42,256  Basesrv.dll
   03-May-2002  11:46  5.0.2195.5684    222,480  Gdi32.dll
   03-May-2002  11:46  5.0.2195.4928    708,880  Kernel32.dll
   25-Jun-2001  19:17  3.10.0.103        47,808  User.exe
   03-May-2002  11:46  5.0.2195.4314    402,192  User32.dll
   03-May-2002  11:46  5.0.2195.5644    369,936  Userenv.dll
   25-Apr-2002  09:16  5.0.2195.5673  1,641,968  Win32k.sys
   03-May-2002  11:31  5.0.2195.5731    178,960  Winlogon.exe
   03-May-2002  11:46  5.0.2195.4602    243,472  Winsrv.dll
   03-May-2002  11:46  5.0.2195.4928    708,880  Kernel32.dll
   03-May-2002  11:46  5.0.2195.5673  1,641,968  Win32k.sys
   03-May-2002  11:46  5.0.2195.4602    243,472  Winsrv.dll
				

STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article. This problem was first corrected in Microsoft Windows 2000 Service Pack 4.

MORE INFORMATION

For additional information about how to obtain a hotfix for Windows 2000 Datacenter Server, click the article number below to view the article in the Microsoft Knowledge Base:
265173 The Datacenter Program and Windows 2000 Datacenter Server Product
For additional information about how to install multiple hotfixes with only one reboot, click the article number below to view the article in the Microsoft Knowledge Base:
296861 Use QChain.exe to Install Multiple Hotfixes with One Reboot

Properties

Article ID: 321343 - Last Review: October 24, 2013 - Revision: 2.10
APPLIES TO
  • Microsoft Windows 2000 Server
  • Microsoft Windows 2000 Advanced Server
  • Microsoft Windows 2000 Professional Edition
Keywords: 
kbnosurvey kbarchive kbautohotfix kbhotfixserver kbqfe kbsecurity kbwin2ksp4fix kbbug kbfix kbwin2000presp4fix KB321343

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