Using the Taskbar icon enables you to hide/show the Main-Dialog by left clicking the icon and to mount/unmount/eject/load images of a device by right clicking the icon.
If you have enabled the Taskbar-Icon you cannot exit the DaemonUI by clicking
on the close button or by pressing Alt+F4, instead DaemonUI is only hidden.
To exit DaemonUI in this case, open the tray-menu or the hint context menu and
select Exit.