OL98: ErrMsg: Cannot Start Microsoft Outlook

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WARNING: Using Registry Editor incorrectly can cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that problems resulting from the incorrect use of Registry Editor can be solved. Use Registry Editor at your own risk.

For information about how to edit the registry, view the "Changing Keys And Values" Help topic in Registry Editor (Regedit.exe) or the "Add and Delete Information in the Registry" and "Edit Registry Data" Help topics in Regedt32.exe. Note that you should back up the registry before you edit it.

To check or change the registry key value, follow these steps:

1. Click Start, click Run, and type "regedit" (without quotation marks).
2. Navigate to the following registry key: HKEY_LOCAL_MACHINE\Software\Microsoft\Office\8.0\Outlook\Setup
3. In the right pane, click MailSupport.
4. Use the following table to determine which Value data to enter.
   
   

   Internet Mail Only = 0

   Corporate or Workgroup = 1

   Type the correct value for your Outlook installation and then click OK.
5. Exit the Registry editor and start Outlook.