What error message? Did you close Outlook before trying to zip the file?

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Sue Mosher, Outlook MVP
Author of
Microsoft Outlook Programming - Jumpstart for
Administrators, Power Users, and Developers
http://www.outlookcode.com/jumpstart.aspx
>I need to send a copy of one of our employees Outlook Calendars to someone
> on a different system from ours. Since it was too large to go through
> email
> I thought I would try to zip the pst file but it keeps generating an error
> message. Does anyone have any suggestions.