With ADTD, you read the Active Directory through Microsoft ActiveX® Data Objects ADO, automating Visio to draw a diagram of the Active Directory Domain and Site topology, your OU structure or you current Exchange 200X Organization. With ADTD, you can also draw partial Information from your Active Directory, like only one Domain or one site. The objects are linked together, and arranged in a reasonable layout that you can later interactively work with in Visio.
ADTD accesses the active
directory through Lightweight Directory Access Protocol (LDAP),