Microsoft KB Archive/234615

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Some Windows 95 Tools May Cause Illegal Operation During Shutdown

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Q234615

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The information in this article applies to:


 * Microsoft Windows 95 OEM Service Release, versions 2.0, 2.1, 2.5

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SYMPTOMS
If the Paint, WordPad, and Imaging tools are all running and either Paint or WordPad is the active program when you shut down or log off your computer, you may receive the following error message:

An illegal operation occurred

CAUSE
In Windows 95, Paint and WordPad are Microsoft Foundation Classes (MFC) version 3 programs, and Imaging is an MFC 4.0 program. There is a conflict in global memory between versions 3.x and 4.0 of MFC, which may cause the version 4.0 program to lose a handle to a window function during Windows 95 shutdown.

RESOLUTION
To prevent this problem from occurring, quit Paint, WordPad, Imaging, and any other MFC programs before shutting down or logging off your computer.

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

This problem was corrected in Microsoft Windows 98.

MORE INFORMATION
Windows 95 (retail release) does not include the Imaging tool. However, Windows 95 (retail release) does include MFC 3.0 versions of Paint and WordPad. If you install an MFC 4.0 program, and you have Paint, WordPad, and the MFC 4.0 program open during shutdown, the error message listed above may occur.

Additional query words: freeze accessory accessories

Keywords : kberrmsg kbtool osr2 win95

Issue type : kbprb

Technology : kbWin95search kbOPKSearch kbWin95OPKOSR25 kbWin95OPKOSR210