Question : Problem: How do I know if the Active Directory Schema has already been extended?

I removed a previous installation of SMS/IIS/SQL that was not working and started from scratch. I do not have schema admin priveleges so I chose not to extend the active directory schema. I suspect that it might have already been extended in the past, is there a way to check? And if it has already been extended, is there something I need to do to configure the SMS server so that it knows it has been extended?

Answer : Problem: How do I know if the Active Directory Schema has already been extended?

Check for the existence of extadsch.log in the root of the C: drive.

Otherwise, you can use ADSIEDIT, drill into CN=System, CN=System Management and see if the schema classes are listed there.