The following list show each version:
Schema-Version 13 = Windows 2000 RTM
Schema-Version 30 = Windows Server 2003 RTM
Schema-Version 31 = Windows Server 2003 R2 RTM
Schema-Version 44 = Windows Server 2008 RTM
Schema-Version 47 = Windows Server 2008 R2
You can find the version number by using one of the following :
1.ADSIedit – – objectVersion property of the Schema container
2.HKLM\SYSTEM\CurrentControlSet\Services\NTDS\Parameters\<Schema Version>
3. dsquery * CN=Schema,CN=Configuration,DC=Root-Domain -Scope Base -attr objectVersion
