BUG: ExitWindowsEx Fails to Shut Down the System if Any Application Returns FALSE in Response to WM_QUERYENDSESSION (277715)


The information in this article applies to:

  • Microsoft Windows NT Server 4.0 SP6
  • Microsoft Windows NT Server 4.0 SP6a
This article was previously published under Q277715

SYMPTOMS

On a Windows NT 4.0 Service Pack 6 (SP6) or Windows NT 4.0 SP6a-based system, when any application calls the ExitWindowsEx function, the system sends the WM_QUERYENDSESSION message to all top-level windows. If any windows that receive the message return FALSE, the shutdown process is stopped, irrespective of how many windows return TRUE. Any subsequent calls to ExitWindowsEx fail to trigger a reboot or a shutdown operation.

RESOLUTION

Configure your applications to call the InitiateSystemShutdownEx function to reboot the system.

STATUS

Microsoft has confirmed that this is a bug in the Microsoft products that are listed at the beginning of this article.

REFERENCES

For additional information, click the article number below to view the article in the Microsoft Knowledge Base:

245148 Windows NT Appears to Hang When You Log Off After Installing Windows NT 4.0 Service Pack 6

Modification Type:MajorLast Reviewed:1/25/2002
Keywords:kbbug KB277715
©2002 Microsoft Corporation. All rights reserved.