I installed Exchange 2003 on Windows 2003 member server. Later on, I ran DCPROMO on that server and made it a domain controller. I have been running into some problems and finally discovered that running DCPROMO on a server with Exchange 2003 server on it and changing roles is not supported. I would like to run DCPROMO and make it a member server again. What do I need to do before I do this? Will I have to re-install Exchange after demoting this server? What will I lose?