Microsoft KB Archive/286294

= OLEXP: Error Message &quot;MSIMN Performed an Illegal Operation&quot; When Connecting to the Internet =

Article ID: 286294

Article Last Modified on 1/29/2007

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APPLIES TO


 * Microsoft Outlook Express 5.5
 * Microsoft Outlook Express 5.0
 * Microsoft Outlook Express 5.5
 * Microsoft Outlook Express 4.0

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This article was previously published under Q286294



For information about the differences between Microsoft Outlook Express and Microsoft Outlook e-mail clients, click the following article number to view the article in the Microsoft Knowledge Base:

257824 OL2000: Differences Between Outlook and Outlook Express



SYMPTOMS
When you attempt to connect to the Internet by using Outlook Express, you may receive one of the following error messages:

MSIMN performed an illegal operation.

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MSIMN caused a general protection fault in module TAPI.DLL



CAUSE
This issue can occur if the Telephon.ini file is missing or damaged.



RESOLUTION
To resolve this issue, rebuild the Telephon.ini file.

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

120221 How to Rebuild the Telephon.ini File

Additional query words: exch2kp2w

Keywords: kberrmsg kbprb KB286294

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