Servers [emulation servers] are responsible for providing communication and emulation services to the users. A server machine can run one or all of the emulation server products concurrently (HostFront for 5250 and HostFront for 3270, as well as BlueZone Access Server for 5250, BlueZone Access Server for 3270 and BlueZone Access Server for VT). However, when adding a server definition, you need to add only one definition for the server machine per product (once for HostFront Server and once for BlueZone Access Server). Moreover, users will be able to connect only to the emulation products with valid license keys regardless of the software installed.