Executing dcpromo on a computer where Exchange Server 2003 is installed is not supported. Doing so will break several things, including anything dependent on ASP.NET. ________________________________ From: exchangelist-bounce@xxxxxxxxxxxxx [mailto:exchangelist-bounce@xxxxxxxxxxxxx] On Behalf Of Steve Moffat Sent: Thursday, April 13, 2006 8:01 AM To: exchangelist@xxxxxxxxxxxxx Subject: [ExchangeList] Re: remove dc role from exchange Hmmmm no, there are issues removing AD from an exchange box....check the MS KB Site, can't quite put my finger on the relevant article just now. S ________________________________ From: exchangelist-bounce@xxxxxxxxxxxxx [mailto:exchangelist-bounce@xxxxxxxxxxxxx] On Behalf Of Ara Avvali Sent: Wednesday, April 12, 2006 7:38 PM To: exchangelist@xxxxxxxxxxxxx Subject: [ExchangeList] remove dc role from exchange Hello everyone, Just to be cleared! There are 3 server and all 3 are domain controllers. PDC,MAIL,BDC. PDc is holding the FSMO rule. If I want to demote exchange box a domain master, all I need to do is running dcpromo ,right? Exchange 2003 running on server 2003. Appreciated J