In an Active Directory environment, does the schema need to be extended once per domain or once per forest? How about eDirectory environments?

Question

In an Active Directory environment, does the schema need to be extended once per domain or once per forest? How about eDirectory environments?

Answer

In an ADS environment, the schema needs to be extended once per forest using adsschema.exe.

In a Novell NDS or eDirectory environment, the schema needs to be extended once per tree using ndsschema.exe.

Separate knowledgebase articles address schema extensions.