This is the Back-Up Module. There are identical choices for
  back-up to either Drive A or Drive B.
  The first option permits back-up of data files MASTER.DAT and
  SERVICE.DAT. These are your most important data files and
  should be backed-up daily!
  The first option also allows back-up of financial files in the
  FINANCE subdirectory. Since you have hard copies of these
  reports, weekly back-up is probably sufficient.
  The second option permits back-up of old insurance forms in the  
  OLDINS subdirectory. You may eventually want to delete the
  older forms and just save the back-up disks.
  The third option is for back-up of the code files DXCODE.DAT,
  DXCAT.DAT, CODEFILE.DAT, and CPTCAT.DAT. These should be
  backed-up whenever the files are changed.
  Should it be necessary to restore your data, use the DOS
  RESTORE command. Refer to your DOS Manual for details.
9'bkhlp'
BKHLP