After all configuration Samba4 as Active Directory succeeded, now we can join Windows client to Samba4. Process of join Windows clients not different with process when using Windows Server. Process of join windows client, divided become some point.
First, configure preferred DNS server to IP of Samba4. Second, configure time of Windows client no more than 5 minutes difference among clients and Samba4 (recommended using NTP). Third, join Windows clients to Samba4 Active Directory.
# Configure DNS
Make sure preferred dns refer to IP address Samba4
# Join Windows Clients
Join Windows clients as usually. Use username administrator and password while provisioning Samba4
If you have been succeeded joined windows clients, you can login as Administrator and make user, Group, OU and Policy with RSAT similar as Active Directory on Windows Server.
You can download RSAT and adjust with your Windows Clients
For Windows 7 : http://bit.ly/KuTeYn
For Windows Vista : http://bit.ly/16oSdBD
Good luck and hopefully useful 😀