IIRC, Outlook 2002 was the first version with the group schedule feature.

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Sue Mosher, Outlook MVP
Author of Configuring Microsoft Outlook 2003
http://www.turtleflock.com/olconfig/index.htm
and Microsoft Outlook Programming - Jumpstart for
Administrators, Power Users, and Developers
http://www.outlookcode.com/jumpstart.aspx
> Within Calendar, Outlook 2000, where can I find the "Schedules" button to set
> up a group schedule? In other versions it is located one the toolbar in
> between "month view" and "find"
>
> Puzzled