OverCASE Integrator is a special application in that a single instance of Integrator is always running while OverCASE is being used. As a consequence, exiting the Integrator application will end the OverCASE session.

When OverCASE Integrator application is closed (by using its File/Exit menu command, or by simply closing the Integrator window), all other OverCASE applications that are currently running are forced to save their current state and then close.