Hi All can anyone please tell me that can i install exchange 2003 on same domain controller machine for 150 users. can anyone please provide me the installation, configuration and setup guide for exchange 2003. Thanks Ali

You can install in on a DC, but it is strongly recommended NOT to. Here is a link to get you started on the install. http://technet.microsoft.com/en-us/library/bb124186(EXCHG.65).aspx Tim Harrington - Catapult Systems - http://HowDoUC.blogspot.com

You may also look at running a SBS version that has AD and Exchange already in 1 box. Mark Morowczynski|MCT| MCSE 2003:Messaging, Security|MCITP:EMA 2K7,EDA Win 7,ES,SA,EA|MCTS:Windows Mobile Admin|Security+|http://almostdailytech.com

I believe that SBS has a 75 user limit. He could use EBS which has a 300 user limit. Although EBS is being discontinued.Tim Harrington - Catapult Systems - http://HowDoUC.blogspot.com

installing exchange 2003 on DC is ok if you have atleast one Backup DC in the same domain.