HELP: Display a help topic
Usage:
  HELP [ topic ]
Environment:
  PAGER: Pager program to display a text file
  HELPPATH: Directory that contains your help files
            Default HELPPATH is C:\FDOS\HELP\

Where topics include:
ASSIGN     ATTRIB     CHOICE     COMP       COPY       DEBUG      
DEFRAG     DELTREE    DISKCOPY   FC         FDISK      FDXMS
FIND       FORMAT     FREECOM    HELP       JOIN       KEYMAN
LISTXDEF   LOADHI     MEM        MORE       NANSI      PRINT
REPLACE    SHARE      SORT       SUBST      SWSUBST    TDSK
TREE       UNFORMAT   VERIFY     XCOPY      XKEYB      

