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I am trying to convert from one 3rd party calendar to another. &nbsp;I can import the one old calendar into my Outlook 20003 but need to export from Outlook 2003 to an ICS fille for import into the new 3rd party calendar.
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I am trying to convert from one 3rd party calendar to another.  I can import the one old calendar into my Outlook 20003 but need to export from Outlook 2003 to an ICS fille for import into the new 3rd party calendar.

Is it possible to export Outlook 2003 Calendar to an ICS file for import into a web calendar?

Interactions between email servers and clients are governed by email protocols. The three most common email protocols are POP, IMAP and MAPI. Most email software operates under one of these (and many products support more than one).  The correct protocol must be selected, and correctly configured, if you want your email account to work.

Email Protocols

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.