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Q135224: Error Message: Rundll32.exe Has Performed an Illegal Operation

Article: Q135224
Product(s): Microsoft Windows 95.x Retail Product
Version(s): 
Operating System(s): 
Keyword(s): 
Last Modified: 17-DEC-2000

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The information in this article applies to:

- Microsoft Windows 95 
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SYMPTOMS
========

When you try to remove a modem using the Modems tool in Control Panel while
Device Manager is open, you may receive the following error message:

  Rundll32.exe has performed an illegal operation.

CAUSE
=====

The error message occurs because Windows 95 detects that the system
configuration has changed and sends a message to the Modems tool to update its
list of modems at the same time that the information for that modem is being
removed from memory.


RESOLUTION
==========

To resolve this issue, use one of the following methods:

- Close the Modems tool and use Device Manager to remove the modem.

- Close Device Manager before you remove the modem in the Modems tool.

Additional query words: msnetwork

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Keywords          :  
Technology        : kbWin95search kbZNotKeyword3

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