See
http://www.slipstick.com/exs/permissions.htm#reviewer
--
Sue Mosher, Outlook MVP
Author of
Microsoft Outlook Programming - Jumpstart for
Administrators, Power Users, and Developers
http://www.outlookcode.com/jumpstart.aspx
"kieran" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> Hi,
>
> I want to change the 'Default' permission on sharing calenders to
> 'Reviewer'. It is currently set to 'None' and therefore no user can
> access anothers calender. I have about 200 users. How can i
> programatically achieve this??
>
> Any help greatly appreciated.