Group policy can't write values to individual folders, which is where permission settings reside. If you want to try to write a script that does what PFDavAdmin does, docs start at http://msdn.microsoft.com/exchange/ with discussions in the microsoft.public.exchange.development newsgroup.

You might also want to look at the tools listed at http://www.slipstick.com/exs/permissions.htm
--
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

"Gary" wrote in message ...
I don't want to have to re-run the tool when new users are added to the
domain and have mailboxes created. I want this to be completely "automatic"
either through group policy or a login script (or a reghack, which I already
know how to incorporate into a GPO.)

"Sue Mosher [MVP-Outlook]" wrote:

Get the free PFDavAdmin tool from http://www.microsoft.com/downloads/d...4-E2422C0AB424. It can manage mailbox folder permissions, as well as public folder permissions.

--
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

"Gary" wrote in message ...
How can I set default permissions for the OL calendar to allow "everyone" to
be a "reviewer"?

Can this be done through a login script or group policy, and if so, how?

Or will I be stuck going to each machine in the company and manually going
to File, Folders, Calendar Properties, Permissions, then set "Default" to
"Reviewer"?