The folder owner can set permissions for any mailbox or public folder in the
Properties dialog for that folder. No invitations are involved. (You must
have been trying to use the Net Folders feature, which isn't designed for
Exchange environments.)

Signature
Sue Mosher, Outlook MVP
Author of
Microsoft Outlook Programming - Jumpstart for
Administrators, Power Users, and Developers
http://www.outlookcode.com/jumpstart.aspx
> Our company using Exchange 2000 and Outlook 2000 in Windows XP platform
>
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> The option of busy/free information is dimmed /not available from the
> Outlook 2000 client