A: Microsoft has released the Active Directory Topology Diagrammer tool, which scans information about AD and creates a Visio diagram that provides detailed information about the domains, sites, and organizational unit (OU) structure. The tool used to be available only to Microsoft internal support staff, but it’s now available to everyone. You can download the tool at www.microsoft.com/downloads/details.aspx?familyid=cb42fc06-50c7-47ed-a65c-862661742764&displaylang=en&tm.

—John Savill