GP Fault When Creating or Manipulating Many Windows (216836)


The information in this article applies to:

  • Microsoft Windows 95
  • Microsoft Windows 95 OEM Service Release 1
  • Microsoft Windows 95 OEM Service Release 2
  • Microsoft Windows 95 OEM Service Release 2.1
This article was previously published under Q216836

SYMPTOMS

When many windows are being created or manipulated, a general protection (GP) fault may occur in User.exe. In rare circumstances, the computer may seem to stop responding (hang).

CAUSE

A problem with an internal function in User.exe may cause a pointer to be calculated incorrectly. Under stress, this pointer may cause corruption to the user heap, which eventually leads to the GP fault when calls are made to GetWindowLong() or SetWindowLong().

RESOLUTION

A supported fix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Apply it only to computers that are experiencing this specific problem. This fix may receive additional testing. Therefore, if you are not severely affected by this problem, Microsoft recommends that you wait for the next update that contains this hotfix.

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

http://support.microsoft.com/default.aspx?scid=fh;EN-US;CNTACTMS

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 typical support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

   Date      Time      Version   Size    File name  Locale
   -----------------------------------------------------------------
   07/24/98   8:26pm   4.00.952  462,528 User.exe   English
   01/06/99  12:45am   4.00.952  463,359 User.exe   French (Standard)
   01/27/99   2:28am   4.00.952  463,351 User.exe   German
   01/28/99   7:25am   4.00.952  463,215 User.exe   Spanish
   01/28/99   7:10am   4.00.952  463,015 User.exe   Italian
NOTE: Due to file dependencies, the most recent hotfix or feature that contains the above files may also contain additional files.




STATUS

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

This issue is resolved in Microsoft Windows 98.
Modification Type:MinorLast Reviewed:10/7/2005
Keywords:kbHotfixServer kbQFE kbprb KB216836
©2004 Microsoft Corporation. All rights reserved.