3.1.1.3.4.3.3 LDAP_CAP_ACTIVE_DIRECTORY_V51_OID

On an Active Directory DC operating as AD DS, the presence of this capability indicates that the LDAP server is running at least the Windows Server 2003 operating system version of Active Directory.

On an Active Directory DC operating as AD LDS, the presence of this capability indicates that the LDAP server is running at least the Windows Server 2008 operating system version of Active Directory.