Finally, administrators can maximize support for Windows users by setting up a Windows primary domain controller (PDC) and defining Windows settings for users. The PDC will accept logins for Windows NT 4.x , Windows XP, and Windows 2000 clients. This feature also supports roaming user profiles and Network home directories on Mac OS X Panther Server. It will also include Samba 3 [LINK HERE], the open-source suite, which provides file and print services to SMB/CIFS clients. Windows users will be supported through Samba's file and printer sharing services as well as through other features, such as active directory integration, open directory authentication, WINS and VPN.