“Live” components - those that are currently running - are identified with a red dot icon in the Component Editor and in the path view of the Component Browser.
You can start and stop a component from the Component Editor by:
Clicking the Start/Stop button on the toolbar or
Selecting Start/Stop Component from the Component menu.
You can start and stop a component from the Components window by:
Selecting Start Component or Stop Component from the File menu.
Right-clicking on the component and selecting Start Component or Stop Component from the pop-up menu.
Important: Stopping or restarting components referenced by other components may leave the ATG platform in an unstable state.