Article ID: 272265 - Last Review: January 29, 2007 - Revision: 2.2

Error message "Outlook Express could not be started because MSOE.DLL could not be loaded" when you start Outlook Express

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This article was previously published under Q272265
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  (http://support.microsoft.com/kb/257824/EN-US/ ) OL2000: Differences Between Outlook and Outlook Express
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SYMPTOMS

When you start Outlook Express, you may receive the following error message:

Outlook Express could not be started because Msoe.dll could not be loaded.
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CAUSE

This behavior can occur if there are different versions of Outlook Express files located in the C:\Program Files\Outlook Express folder because of the installation or uninstallation of different Outlook versions.
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RESOLUTION

To resolve this behavior, back up your Outlook Express data, and manually remove and reinstall Outlook Express.
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APPLIES TO
  • Microsoft Outlook Express 5.5
  • Microsoft Outlook Express 5.01 Service Pack 2
  • Microsoft Outlook Express 5.0
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Keywords: 
kbprb KB272265
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