OLEXP: Outlook Express Does Not Start from the Mail Button in Internet Explorer

This article has been archived. It is offered "as is" and will no longer be updated.
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
IMPORTANT: This article contains information about modifying the registry. Before you modify the registry, make sure to back it up and make sure that you understand how to restore the registry if a problem occurs. For information about how to back up, restore, and edit the registry, click the following article number to view the article in the Microsoft Knowledge Base:
256986 Description of the Microsoft Windows Registry
Symptoms
Outlook Express does not start when you click theMail button, and then click Read Mail in Microsoft Internet Explorer. Outlook Express is verified as installed and starts from the Run dialog box. Additionally, it may not be listed as an available e-mail program in Internet Explorer's Internet Options.
Cause
This behavior can occur because of missing or invalid registry key entries.
Resolution
WARNING: If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk.

Make sure that the following registry keys are in place and have the correct values. You may need to add them or parts of them. To start Registry Editor, click Start, and then click Run. In the Open box, type regedit, and then click OK.
HKEY_LOCAL_MACHINE\Software\Clients\Mail\Outlook Express\Envelope

HKEY_LOCAL_MACHINE\Software\Clients\Mail\Outlook Express\Envelope\CLSID
Default Value="{A08AF898-C2A3-11d1-BE23-00C04FA31009}"

HKEY_LOCAL_MACHINE\Software\Clients\Mail\Outlook Express\Envelope\CurVer
Default Value="OutlookExpress.Envelope.1"

HKEY_LOCAL_MACHINE\Software\Clients\Mail\Outlook Express\Protocols

HKEY_LOCAL_MACHINE\Software\Clients\Mail\Outlook Express\Protocols\mailto
Default Value="URL:MailTo Protocol"
"EditFlags"=hex:02,00,00,00
"URL Protocol"=""

HKEY_LOCAL_MACHINE\Software\Clients\Mail\OutlookExpress\Protocols\mailto\DefaultIcon
Default Value="C:\PROGRAM FILES\OUTLOOK EXPRESS\MSIMN.EXE,-2"

HKEY_LOCAL_MACHINE\Software\Clients\Mail\OutlookExpress\Protocols\mailto\shell

HKEY_LOCAL_MACHINE\Software\Clients\Mail\OutlookExpress\Protocols\mailto\shell\open

HKEY_LOCAL_MACHINE\Software\Clients\Mail\OutlookExpress\Protocols\mailto\shell\open\command
Default Value=""C:\PROGRAM FILES\OUTLOOK EXPRESS\MSIMN.EXE\" /mailurl:%1"

HKEY_LOCAL_MACHINE\Software\Clients\Mail\Outlook Express\shell

HKEY_LOCAL_MACHINE\Software\Clients\Mail\Outlook Express\shell\open

HKEY_LOCAL_MACHINE\Software\Clients\Mail\Outlook Express\shell\open\command
Default Value=""C:\PROGRAM FILES\OUTLOOK EXPRESS\MSIMN.EXE\" /mail"
Note This is a "FAST PUBLISH" article created directly from within the Microsoft support organization. The information contained herein is provided as-is in response to emerging issues. As a result of the speed in making it available, the materials may include typographical errors and may be revised at any time without notice. See Terms of Use for other considerations.
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Article ID: 277015 - Last Review: 01/12/2015 16:59:55 - Revision: 1.0

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