A computer that is running Windows Server 2003 stops responding after you press CTRL+ALT+DEL while the screen saver is running

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Article ID: 971080 - View products that this article applies to.
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SYMPTOMS

You have a computer that is running Windows Server 2003. If you press CTRL+ALT+DEL while the screen saver is running, the computer stops responding. To shut down the computer, you must press the power button.

CAUSE

This issue occurs because an event is sent to the screen saver and to the winlogon service when CTRL+ALT+DEL are pressed. Therefore, the screen saver and the winlogon service try concurrently to shut down the screen saver.

However, the threads that are trying to shut down the screensaver do not synchronize correctly. Therefore, the winlogon service waits in deadlock for the screen saver. Therefore, the computer stops responding.

RESOLUTION

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. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

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, contact 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.

Prerequisites

To apply this hotfix, your computer must be running Windows Server 2003 Service Pack 2 (SP2).

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any other previously released hotfixes.

File information

The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.
For all supported x86-based versions of Windows Server 2003 SP2
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatformSP requirement
Licdll.dll5.2.3790.4516469,50420-May-200909:33x86SP2
Winlogon.exe5.2.3790.4516528,38418-May-200920:41x86SP2
For all supported Itanium-based versions of Windows Server 2003 SP2
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Winlogon.exe5.2.3790.4516679,93620-May-200908:47IA-64
For all supported x64-based versions of Windows Server 2003 SP2 and of Windows XP SP2
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatformSP requirement
Licdll.dll5.2.3790.4516757,76020-May-200904:23x64SP2
Winlogon.exe5.2.3790.4516945,15220-May-200904:23x64SP2

WORKAROUND

To work around this issue, use one of the following methods:

Method one

Stop the screen saver by pressing keys other than CTRL+ALT+DEL.

Method two

Stop the screen saver by using a mouse.

Method three

Disable the screen saver.

STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" 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

Properties

Article ID: 971080 - Last Review: June 5, 2009 - Revision: 1.0
APPLIES TO
  • Microsoft Windows Server 2003, Datacenter Edition (32-bit x86)
  • Microsoft Windows Server 2003, Datacenter Edition for Itanium-Based Systems
  • Microsoft Windows Server 2003, Datacenter x64 Edition
  • Microsoft Windows Server 2003, Enterprise x64 Edition
  • Microsoft Windows Server 2003, Enterprise Edition (32-bit x86)
  • Microsoft Windows Server 2003, Enterprise Edition for Itanium-based Systems
  • Microsoft Windows Server 2003, Standard x64 Edition
  • Microsoft Windows Server 2003, Standard Edition (32-bit x86)
  • Microsoft Windows XP Professional x64 Edition
Keywords: 
kbautohotfix kbexpertiseadvanced kbfix kbsurveynew kbqfe kbhotfixserver KB971080

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