When you use ShellDispenser you can close, start and restart Explorer via the corresponding buttons in the main window. When you have to restart Explorer on a regular basis it is easier to assign a hot key to each action. This way you can use easy key combinations to manage Explorer. To use hot keys it is not needed to have ShellDispenser in the foreground. When using hotkeys it might also be convenient to place ShellDispenser in the notification area.
The hot keys to use can be specified in the "Settings" window.