Tools:
- PFDAVAdmin: to connect to the exchange for changing the permissions clients, Replication and more. Work on exchange 2003
- ExFolder: do the same for Exchange 2007,2010 http://msexchangeteam.com/files/12/attachments/entry456255.aspx
- Modify Items: to modify the USN and check if the users got access to all items, I mean the administrator, and if ou made any changes you need to run the tools again.
