Prepping our domain for Exchange 2007. We have a pair of Domain Controllers at the Root Domain andseveralsub domains, each having their own 32 bit version of Exchange 2003. I tried to prep the root Domain (server2003) running the Trial Version of 2007 Exchange. Wehave the real version, but notthe real, 32bit version. I am getting several errors when I try to run the Setup.com /PrepareLegacyExchangePermissions, setup.com /prepareSchemaand setup /PrepareAD.We then tried to add a 2007 Exchange Server on a Sub-Domain. Didn't work and got a whole list of errors.We are quite sure that we have the right account that has permission down the line, etc. Do we need to run commands in the Exchange Servers....such as PrepareLegacyExchangePermissions, PrepareAD, etc? Any words of wisdom. I found on one link where it suggested that we add a 64bit server account to the Root Domain and then run those commands.Peterand

Hi, Have you taken a look at this link? How to Prepare Active Directory and Domainshttp://technet.microsoft.com/en-us/library/bb125224.aspxthe 32bit version of Exchange is not supported for production use. If you have a licensed copy of Exchange 2007 and x64 hardware than I would suggest installation the acutal copy.In order to deploy Exchange 2007 you need to be a member of the Enterprise, Domain, and Schema Admin role.You're Schema master must be on a W2K3 SP1 box and your Global Catalogs must be at least W2k3 SP1. Also make sure that the location you are preparing your schema (setup /P or what ever) is in the same Active Directory Site as your schema master and GCs. More info here: Exchange 2007 System Requirementshttp://technet.microsoft.com/en-us/library/aa996719.aspx SF - MCITP:EMA, MCTS: Exchange 2010, Exchange 2007, MOSS 2007, OCS 2007 -- http://www.scottfeltmann.com