After you've decided which scripting technologies and object models that you want to learn, you can check out the following resources. This list is not all-inclusive; rather, it's simply a starting point.
ADO
To learn more about the Active Data Objects (ADO) object model, go to http://msdn.microsoft.com/library and select Partial Books, Beginning Visual Basic 6 Database Programming, Chapter 11 - Universal Data Access Using ADO, The ADO Object Model. To learn more about how to instantiate and use ADO objects with ADSI to access the Active Directory (AD), see Alistair G. Lowe-Norris, "An ADSI Primer," Win32 Scripting Journal, May and June 1999.
ADSI
To learn more about the Active Directory Service Interfaces (ADSI) object model, go to http://msdn.microsoft.com/library and select Platform SDK; Networking and Directory Services; Active Directory, ADSI, and Directory Services; Active Directory Service Interfaces (ADSI). To learn more about how to instantiate and use ADSI objects, see Alistair G. Lowe-Norris, "An ADSI Primer," Win32 Scripting Journal, January 1999 through December 1999. . . .