Before you start the process of preparing Active Directory Domain Services (AD DS) for Office Communications Server 2007 R2, ensure that your Active Directory infrastructure meets the following prerequisites:

Office Communications Server 2007 R2 supports the universal groups in the Windows Server 2003 and Windows Server 2008 operating systems. Members of universal groups can include other groups and accounts from any domain in the domain tree or forest and can be assigned permissions in any domain in the domain tree or forest. Universal group support, combined with administrator delegation, simplifies the management of an Office Communications Server deployment. For example, it is not necessary to add one domain to another to enable an administrator to manage both.

See Also

Other Resources

Supported Topologies and Infrastructure Requirements