I thought it would be a good idea to share with you a list of Active Directory schema version numbers
- Windows 2000 RTM with all Service packs = Schema version 13
- Windows Server 2003 RTM with all Service packs = Schema version 30
- Windows Server 2003 R2 RTM with all Service packs = Schema version 31
- Windows Server 2008 RTM with all Service packs = Schema version 44
- Windows Server 2008 R2 RTM with all Service packs = Schema version 47
- Windows Server 2012 RC = Schema version 56
You can check the version with one of the following methods.
- Registry: HKLMSYSTEMCurrentControlSetServicesNTDSParameters<Schema Version>
- dsquery: dsquery * CN=Schema,CN=Configuration,DC=Root-Domain -Scope Base -attr objectVersion
- ADSIEdit: open ADSIEdit and navigate to “CN=Schema,CN=Configuration,DC=domain,DC=local”, right-click “Properties” and locate “objectVersion” attribute value
