You want to prepare an Active Directory forest for the installation of Exchange. You must do this even if you have an existing Exchange 2000 organization and are preparing to install your first Exchange Server 2003 server.
Log in with a domain account that is a member of the
Admins group (and has local machine
administrative rights, if running forestprep from a member
Start Exchange Setup from the product CD.
Select Exchange Server Setup from the initial splash screen.
Accept the license agreement and click Next.
If prompted, enter your 25-character product key. Note that you won't see this screen in Setup—ever—if you're installing an evaluation version or a version that contains a Microsoft Volume Licensing key, which is common at large organizations that have volume license agreements in place.
On the Component Selection page, be sure that the Action is set to ForestPrep. If it is not, select ForestPrep from the drop-down list and click Next.
In the Installation Type page, make sure that the Create a New Exchange Organization radio button is selected, then click Next.
In the Organization Name page, name your Exchange organization and select the account or security group within your organization that will be used as the first account granted Exchange administrative privileges. You should create a separate security ...