Active Directory User Account Objects
Microsoft® Windows® 2000 Scripting Guide
Learning to automate Active Directory user operations begins with a basic understanding of each type of Active Directory object, each objects attributes, and the tasks commonly associated with each type of object.
A user account object, like all objects in Active Directory, is derived from a class. A class can be thought of as a template that defines what an object can or must contain. Just as a word processing template defines the content of a document created from it, a class defines the content of an object created from it.