[This is pre-release documentation and subject to change in future releases. This topic's current status is: Milestone-Ready]

Topic Last Modified: 2010-07-09

Before you start the process of preparing Active Directory Domain Services (AD DS) for Microsoft Communications Server 2010, ensure that your Active Directory infrastructure meets the following prerequisites:

Communications Server 2010 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 a Communications Server deployment. For example, it is not necessary to add one domain to another to enable an administrator to manage both.