Outlook 2003 and Outlook 2007 only use TCP/IP or HTTP protocol bindings connecting to an Exchange Server

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Microsoft Office Outlook 2007 and Microsoft Office Outlook 2003 support only the following two remote procedure call (RPC) bindings when Outlook connects to a server that is running Microsoft Exchange Server:
Protocol nameRPC protocol string
More information
Outlook 2007 and Outlook 2003 can connect to a Microsoft Exchange server only by using either RPC over TCP/IP or RPC over HTTP. Outlook 2007 and Outlook 2003 do not try to use named pipes or any other RPC binding method to establish a connection to an Exchange server.
OL2007 ol2003

Article ID: 832396 - Last Review: 01/12/2015 22:55:21 - Revision: 5.0

Microsoft Office Outlook 2007, Microsoft Office Outlook 2003, Microsoft Exchange 2000 Server Standard Edition, Microsoft Exchange Server 5.0 Standard Edition, Microsoft Exchange Server 5.5 Standard Edition

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