Process Services Administrator is an MMC snap-in application you can use to configure and administer workflow system components on Windows platforms. When you start a component from Process Services Administrator, you spawn a process that runs in a service context and thus does not terminate when you log off and log back on as a different user.
In a system with Workplace clients, Process Services Administrator runs on Content Engine and is used to manage Process Routers on Content Engine.
In a FileNet Web Services Client or Open Client system, Process Services Administrator runs on both the web server and Process Engine; depending on where you run it, Process Services Administrator is used to manage Process Routers or to configure automatic launching of workflows.