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Q216836: GP Fault When Creating or Manipulating Many Windows

Article: Q216836
Product(s): Microsoft Windows 95.x Retail Product
Version(s): 1,2,2.1
Operating System(s): 
Keyword(s): osr2 win95kbfixlist
Last Modified: 08-MAY-2002

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The information in this article applies to:

- Microsoft Windows 95 
- Microsoft Windows 95 OEM Service Release, versions 1, 2, 2.1 
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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 described in this article and should be applied only to
systems experiencing this specific problem. This fix may receive additional
testing at a later time, to further ensure product quality. Therefore, if you
are not severely affected by this problem, Microsoft recommends that you wait
for the next update that contains this fix.

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, please go to the following
address on the World Wide Web:

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

NOTE: In special cases, charges that are normally incurred for support calls may
be canceled, if a Microsoft Support Professional determines that a specific
update will resolve your problem. Normal 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 this to be a problem in the Microsoft products that are
listed at the beginning of this article.

This issue is resolved in Microsoft Windows 98.


Additional query words: ipf

======================================================================
Keywords          : osr2 win95 kbfixlist
Technology        : kbWin95search kbOPKSearch kbZNotKeyword3 kbWin95OPKOSR2 kbWin95OPKOSR1 kbWin95OPKOSR210
Version           : :1,2,2.1
Issue type        : kbprb

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