Windows Services are used by CM4D Scheduler to run the CM4D Scheduler Service and the CM4D Launcher Service.
· CM4D Scheduler Service - connects CM4D Scheduler to the database and assigns jobs to users throughout the system.
· CM4D Launcher Service - used by the Scheduler Service to run (or "launch") the instances of CM4D that will be used to open documents and print reports whenever a job needs to be run. The Launcher Service is also used by CM4D Web to generate reports.
See here for more information on the various Scheduler Users and their requirements.