Microsoft KB Archive/327565

= Computer hangs during shutdown or restarts if multiple programs call the ExitWindowsEx function =

Article ID: 327565

Article Last Modified on 2/19/2007

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APPLIES TO


 * Microsoft Windows XP Home Edition
 * Microsoft Windows XP Professional
 * Microsoft Windows 2000 Advanced Server
 * Microsoft Windows 2000 Professional Edition
 * Microsoft Windows 2000 Server

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This article was previously published under Q327565



SYMPTOMS
If two or more programs try to shut down or restart Windows, the computer that is running Microsoft Windows XP or Microsoft Windows 2000 may stop responding while it is shutting down. The desktop wallpaper may be visible and the mouse pointer may move, but the computer may not respond to keyboard input (including the CTRL+ALT+DELETE key combination). You might have to turn off the computer to continue. If Automatic Update is configured to install updates from Windows Update, from Microsoft Update, or from a Windows Server Update Service (WSUS) server, the Windows 2000 system may stop responding during shutdown or restart after you install updates.



CAUSE
If multiple programs call the ExitWindowsEx function to shut down or restart Windows at almost the same time, one of the shutdown messages may be discarded incorrectly. When this occurs, the shutdown process does not complete.



RESOLUTION
A supported hotfix is now available from Microsoft. However, it is intended to correct only the problem that is described in this article. Only apply it to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next Microsoft Windows XP service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Customer Support Services to obtain the hotfix. For a complete list of Microsoft Customer Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

Note There is no Windows 2000 hotfix available for this problem because Windows 2000 is in an extended support phase. For more information, visit the following Microsoft Web site:

http://www.microsoft.com/windows2000/server/evaluation/news/bulletins/extendedsupport.mspx

For more information about Microsoft product life cycle policies, visit the following Microsoft Web site: following Web site

http://support.microsoft.com/common/international.aspx?RDPATH=dm;en-us;lifecycle.

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.   Date         Time   Version       Size       File name ---  22-Aug-2002  19:16  5.1.2600.100  1,671,040  Win32k.sys



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

Keywords: kbhotfixserver kbqfe kbbug kbfix kbqfe KB327565

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