If you want to install Active Directory, create and delete users, create groups, and add users to a group, follow these instructions.

Active Directory is easily the most complex aspect of a Windows 2000 migration. Here's a road map for getting started -- and how to avoid pitfalls that could take you back to square one.

In-Depth Active Directory How To: Implementing the New Windows Server 2012 DAC The process for implementing the new Dynamic Access Control feature will be a timely endeavor for enterprises.