Ok, I will try to be as clear as possible. I need to install a exchange 2007 sp3 server into our child domain. The root domain has exchange 2007 sp2 installed and there is no exchange 2003 servers anywhere. ROOT - Windows 2003 and Exchange 2007 SP2 CHILD - Windows 2008 R2 Enterprise and Exchange 2007 SP3 This is the first time i have installed a exchange server into a child domain. Is there anything that needs to be prepped in the root first as its only sp2? The admin there is going to install sp3 there and see if things help. In the root domain, the schema was extended to windows 2008 r2 and for exchange, setup/preparealldoamins was done sucessfully. In the child domain, im installing exchange as a enterprise and schema admin with a user account in the root domain. What switches do i still run in the child domain? I have tried setup prepareAD /organizationName: Company Name and i get this error: [ERROR] The specified value 'company,name' is not a valid organization name. Please specify a valid organization name. I did not put a comma in between the company name, just company name? Do i just run setup /prepareAD AND Setup /preparedomain from the child? What is run from the root? There is not alot of documentation out for what is happening. This mail server in the child domain will be joining the mailserver in the root domain so im a little stuch and thought i would ask some exchange gurus. Any help would be really appreciated as i need to get this up and running very soon. thanks Flames

Hello put you exchange installation Disk in and run the prerequisites and go from there following the instructionsIsaac Oben MCITP:EA, MCSE

Thanks. I want to do this separately as installing this on R2, thses commands needs to be done separate before i can install the prereqs for exchange (IIS and such)

If you don't run the commands manually the setup will take care of the schema prep You need to make sure that the account have the necessary permissions Jonas Andersson MCTS: Microsoft Exchange Server 2007/2010 | MCITP: EMA 2007/2010 | MCSE/MCSA Blog: http://www.testlabs.se/blog

Hello, You should upgrade your existing Exchange 2007 servers to SP3 before installing backend servers with SP3. Exchange SP upgrades always has be done with the internet facing site first, and in this order: Client Access, Hub Transport, Unified Messaging, Mailbox. When the servers you have are upgraded to SP3 you can deploy the server in the child domain with Exchange 2007 SP3. Remember to do the schema upgrade from the schema master first, this will ease you deployment later on. /Martin