We use Retrospect by Danz...system wide. Our problem was that it didn't really backup the system state because our backup server at this location is a Mac....
Besides that, the software is great. There is a little program you can use to backup the system state and then restore is fine. Have experienced another restore with AD server since we discovered this minor flaw with NO hitches. Hope this helps... List Charter and FAQ at: http://www.sunbelt-software.com/exchange_list_charter.htm
