I often get the question if Active Directory is LDAP compliant. Well, I could start ranting here but I won't. Instead I'll just direct you to the Active Directory LDAP Compliance paper:
This paper discuss the following:
- What is LDAP?
- What does it mean to be LDAP compliant?
- AD's LDAP compliance
- Compliance misconceptions
- Directory Interoperability
So, if you want to learn more about LDAP compliance I recommend to start with this paper. If you're a geek like me :) there's always a bunch of RFCs to read...