How to: Stop an Instance of Notification Services (Services Manager)
Each instance of Notification Services has an engine on each server that runs a hosted event provider, generator, or distributor. Typically, the NS$instanceName Microsoft Windows service runs the Notification Services engine. One way to stop a Windows service is through the Windows Services Manager.
|This procedure does not apply to clusters. On a cluster, you must use Cluster Administrator to stop the Generic Service that is configured to run the instance's Windows service.|