OL98: Why Outlook 98 Requires the Installation of Outlook Express

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SUMMARY

This article describes why Outlook requires the installation of Outlook Express. Microsoft does not support the use of Outlook 98 without Outlook Express.

Outlook shares files with Outlook Express.

If you install Outlook with the Internet Mail Only (IMO) option, Outlook does not run if Outlook Express is not installed. If you install Outlook with the Corporate or Workgroup (CW) option, Outlook loses much of its functionality. Shared functionality between Outlook and Outlook Express provides the following key functionalities:

Internet Accounts management
Secure/Multipurpose Internet Mail Extensions (S/MIME) use
Newsreader use

For additional information about issues you may encounter if Outlook Express is not installed, click the article number below to view the article in the Microsoft Knowledge Base:

182167 (http://support.microsoft.com/kb/182167/EN-US/ ) OL98: Installing and Using the Outlook Newsreader

APPLIES TO

Microsoft Outlook 98 Standard Edition

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kbfaq kbinfo KB255029

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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