The operation of Connection Server instances depends on several services that run on the system. These systems are started and stopped automatically, but you might sometimes find it necessary to adjust the operation of these services manually.
You use the Microsoft Windows Services tool to stop or start VMware Horizon services. If you stop VMware Horizon services on a Connection Server host, end users cannot connect to their remote desktops or applications until you restart the services. You might also need to restart a service if it has stopped running or if the VMware Horizon functionality that it controls appears to be unresponsive.