RD Licensing is a role service that manages the Remote Desktop Services client access licenses (RDS CALs) that are required ...

RD Licensing is a role service that manages the Remote Desktop Services client access licenses (RDS CALs) that are required for a client to connect to an RD Session Host server. This includes the ability to track and report RDS Per User CALs. If you have an existing Remote Desktop license server, you can move the RDS CALs to a new license server that is running Windows Server 2008 R2.