Overview of Active Directory Preparation
Preparing Active Directory for Office Communications Server 2007 involves three basic steps that are explained in more detail in the following sections:
Prepare the Active Directory Schema. Extend the schema so that the new classes and attributes required for Office Communications Server 2007 can be added to the schema. This step is run once on an Active Directory forest.
Prepare the Active Directory Forest. Create Office Communications Server objects and attributes under the Systems container in the root domain or under the configuration naming context. These objects and attributes are required for Office Communications Server deployment and operations. Prep Forest is required and run once on an Active Directory forest.
Prepare Each Active Directory Domain. Add permissions on objects in the domain for universal groups. Prep Domain is required and must be run once in each domain where you deploy Office Communications Server.