            ┌────────────────────────────┐
            │   OPERATING SYSTEM SHELL   │            
            └────────────────────────────┘            
                                                      
This option allows you to step outside of the program,
temporarily,  and to use any of the  operating  system
built-in commands - such as DIR, COPY or SORT. You can
even  start  another  program,  provided that there is
enough memory in your computer to allow it.           
                                                      
DEMON.EXE will actually load a second copy of DOS as a
"child process",  enabling  you to  perform any of the
tasks you would normally do from the  operating system
command line prompt. This program will stay in memory,
however,  and you can  return to it at any time,  just
by entering the command 'EXIT'.