Juniper Systems Allegro DOS Manual - Manual (Page 125)

Windows CE Page 4-59
To view both bars on separate lines again, move the slider down where
the toolbar was originally:
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Hiding the Taskbar
You can hide the Taskbar, freeing up room on the display for
applications. To do this, tap the Start button and select Settings|
Taskbar. Under Taskbar options tap the box next to Auto hide.
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Press the stylus along the edge to view the Taskbar
When the Taskbar is hidden, you can get it to appear if you press a
stylus along the very bottom of the Allegro screen.
When the Taskbar is hidden you can press the <Start> button on the
keyboard to bring up the Start menu. Press the Task Manager button to
bring up the Task Manager and move between active applications and
tasks.
Press + for Start menu, for Task Manager