OL98: IMO: Installation Does Not Support MAPI Providers

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View products that this article applies to.

This article was previously published under Q214631

NOTE: These procedures only apply if you have installed Outlook with the Internet Mail Only option. To determine your installation type, click About Microsoft Outlook on the Help menu. If you have the Internet Mail Only option installed, you see "Internet Mail Only".

For information about the differences between Microsoft Outlook and Microsoft Outlook Express 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

Third-party MAPI service provider does not work in Outlook 98 Internet Mail Only (IMO) installation, but it does work in Outlook Corporate or Workgroup (CW)installation.

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CAUSE

During the installation process, you have three choices:

Internet Mail Only
Corporate or Workgroup(
No E-Mail installations

The IMO setup installs a version of the MAPI subsystem that does not support MAPI providers. This means that if the user installs Outlook (IMO) they will not be able to use any service providers that are built to the MAPI specification.

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APPLIES TO

Microsoft Outlook 98 Standard Edition

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kbbug kbinterop kbmsg KB214631

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Retired KB Content Disclaimer

This article was written about products for which Microsoft no longer offers support. Therefore, this article is offered "as is" and will no longer be updated.

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