I have two domains, one with a 2k8 R2 DC; the other domain has a 2k3 DC. All users have Outlook 2010 on Windows 7. We do not have Exchange, everyone uses a combination of pop/imap. What I'd like to do with a group policy (if possible) is create one centralized address book that would be updated/imported or copied to users computers each time the policy is applied at login. I do not want a centralized address book that they are connected to in the sense that if one person made a change it would affect everyone else. Is this possible to do without Exchange and through Group Policy?