I have found that a reapplication of the latest service pack usually corrects the problem, or sometimes even a
simple reboot of the Exchange Server. You can also check out the Microsoft Knowledge Base article 298513, "Removal of application mappings may cause an HTTP 404 error in Outlook Web Access."
Do you have comments on this Ask the Expert Q&A? Let us know.
Related information from SearchExchange.com:
Dig deeper on Outlook Web Access
Related Q&A from Bradley Dinerman
Are you having trouble with duplicate appointments in your Microsoft Outlook 2003 calendar? Learn what may cause this to happen.continue reading
Find out how you can avoid DNS issues related to a Exchange 2003 server only collecting email from specific POP3 domains.continue reading
Learn the best way to configure the default recipient policy in an Exchange 2003 test environment.continue reading
Have a question for an expert?
Please add a title for your question
Get answers from a TechTarget expert on whatever's puzzling you.