Active Directory [L1 ] is Microsoft's implementation of, among other things, LDAP services.
Two approaches to AD work are:
I like this [L2 ] reference to Microsoft's own AD Searches [sic] Tools. Note, though, that the previous page fails to mention ldifde and csvde, which, despite the appearance of their documentation [L3 ] [L4 ], are available for Windows Server 2000. Also significant is schemadocfile [L5 ].