This means if you have 5 people sharing 1 workstation and they all use TS on a server, they only require 1 TS CAL. In Windows 2000, Terminal Services only included a “Per Device” licensing mode. Windows 2003 Terminal Server Licensing Hack / Bug. Download Key Management Service (x86) for Windows Server 2003 SP1 and Later. The package supports Windows Server 2003 Datacenter Edition, Windows Server 2003 Enterprise Edition and Windows Server 2003 Standard Edition with Service Pack 1 or later.