My 2003 SBS has a corrupted OS. How method should I use towipe out and re-install the OS and rebuild my domain so as not to disrupt all the clients?

Does not belong in the Exchange forum. But guess you are in a hurry. You'll find expert help here:English:News reader: microsoft.public.windows.server.sbshttp://www.microsoft.com/communities/newsgroups/list/en-us/default.aspx?dg=microsoft.public.windows.server.sbs German:News reader: microsoft.public.de.windows.server.sbshttp://www.microsoft.com/communities/newsgroups/list/en-us/default.aspx?dg=microsoft.public.de.windows.server.sbs Jon-Alfred Smith MCTS: Messaging MCSE: S+M