RDS supports sessions and license management, with many improvements to the user experience and license management functions. It also includes a native virtual machine (VM) support, as well as server roles to facilitate discovery, connection brokering, server farms (for larger-scale deployments and redundancy) and secures WAN access.
Formerly known as Terminal Server, Remote Desktop Session Host (RD Session Host) server is the RDS server role. It can deliver both full desktops and individual applications, known as RemoteApp programs. It's ideal for highly scalable application delivery. Multiple users can log into an RD Session Host server and run applications independently of each other.