Forest preparation is the second step in preparing Active Directory Domain Services (AD DS) for Office Communications Server.
The forest preparation step creates the following for use by Office Communications Server:
Active Directory global settings and objects
Active Directory universal groups
This step creates objects that contain global settings and information about your Office Communications Server deployment. Global settings are stored either in the Configuration container or in the System container of the forest root domain. This step also creates objects that contain property sets and display specifiers used by Office Communications Server, and stores them in the Configuration container.
Forest preparation must be performed once for each Active Directory forest where you plan to deploy Office Communications Server.
In a resource forest topology, run this step only in the resource forest, not in any user forests. In a central forest topology, run this step only in the central forest, not in any user forests.
Before you perform the forest preparation step, you must decide where to store global settings — in the root domain System container or in the Configuration container. For details about how to make this decision, see .
For the detailed steps and user rights required for this procedure, see .
For a description of the global settings and objects and the universal groups created by forest preparation, see .
Domain preparation is the third step in preparing Active Directory Domain Services (AD DS) for Office Communications Server 2007 R2.
The domain preparation step adds to universal groups the necessary access control entries (ACEs) that grant permissions to host and manage users within the domain. Domain preparation creates ACEs on the domain root and three built-in containers: Users, Computers, and Domain Controllers. If your organization uses custom containers instead of these three built-in containers, see for details about how to grant the required permissions.
Domain preparation must be performed once in each domain where you plan to deploy Office Communications Servers and where your Office Communications Server users reside.