For more detailed discussion of how to use Lightweight Directory Access Protocol (LDAP), see the following articles:

"HOWTO: Use ADSI to Set LDAP Directory Attributes"

"Using the Active Directory Service Interfaces"
( directry_4sv9.htm)

Compaq's Active Answers
Compaq has several white papers on ADSI and LDAP topics on its ActiveAnswers Web site ( When you access the site, perform an "Exact Phrase" full-text search for Windows 2000 and Exchange and look for the ADSI white papers by Alain Lissoir.