File Replication Service (FRS) is a technology that was originally introduced on Windows 2000 Server to replicate Distributed File System (DFS) folders and the SYSVOL folder on domain controllers. FRS has been replaced in Windows Server 2008 R2 by DFS Replication for replicating DFS folders and for replicating the SYSVOL folder.
To manage a Distributed File System namespace that uses FRS to replicate content, open the Distributed File System snap-in on a computer running Windows Server 2003 or Windows 2000 Server.
In Windows Server 2008 R2, FRS can be used only to replicate the SYSVOL folder on domain controllers in domains that use the Windows Server 2003 or Windows 2000 domain functional levels. All other replication tasks that were performed by FRS are now performed by DFS Replication. FRS replicas are disabled on servers that have been upgraded to Windows Server 2008 R2. For more information, see the Microsoft Web site (http://go.microsoft.com/fwlink/?LinkId=140224 ).