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Article ID: 920134 - Last Review: January 16, 2015 - Revision: 1.4

This article has been archived. It is offered "as is" and will no longer be updated.


This article discusses the support that is available for applications that use the Web Distributed Authoring and Versioning (WebDAV) protocol to access Microsoft Exchange 2000 Server or Microsoft Exchange Server 2003. We support the use of the WebDAV protocol for the following items:
  • Non-recurring appointments
  • Contacts in Microsoft Outlook that you create or modify
  • Folders that you create in Outlook and in Exchange 2000 Server or Exchange Server 2003
  • E-mail messages that you create or modify

    Note You cannot use the WebDAV protocol to access the Rich Text Format (RTF) body of an e-mail message.
All other tasks that use the WebDAV protocol to modify a Web store in Exchange 2000 Server or in Exchange Server 2003 are not supported.

Note These limitations do not apply to Outlook Web Access URLs.


Because of limitations that exist when you create items that are compatible with Outlook, we do not support complex calendaring when you use the WebDAV protocol. Complex calendaring applications include the following items:
  • Recurring appointments
  • Meeting functionality

    Note Meeting functionality includes sending, modifying, and canceling meetings.
For applications that require complex calendaring functionality with Exchange 2000 Server or with Exchange Server 2003, we recommend that you use the following APIs:
  • Collaboration Data Objects for Exchange 2000 Server (CDOEX)
  • Collaboration Data Objects (CDO) 1.21
  • Outlook Object Model
These APIs include additional logic that is required to make the created items work correctly with Outlook. This additional logic is not available when you use the WebDAV protocol.

For more information about how to use the WebDAV protocol to develop messaging applications, visit the following Microsoft Developer Network (MSDN) Web site: (

  • Microsoft Exchange Server 2003 Enterprise Edition
  • Microsoft Exchange Server 2003 Standard Edition
  • Microsoft Exchange 2000 Server Standard Edition
kbnosurvey kbarchive kbwebdav kbhowto kbexchdev kbinfo KB920134
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