Panic Station is a utility that when it is run resides in the system tray. Its proposition is to hide all open windows (including their toolbar buttons) with just one mouseclick on the icon in the system tray on the right of the screen.
The implicated programs don`t close or finish, they are simply hidden from view until you click again on the system tray icon. If you close the Soft 191 Panic Station program, it restores whichever window was hidden. You can also access an options menu by right-clicking on the program icon.