MULTIBAK V2.3 Gilbert Shapiro            REGISTRATION $20.00
UTILITIES BACKUP SHAPIRO FILE

New Release

Many microcomputer programs that modify files, such  as word
processors,  data  base  managers, and spreadsheets, provide
for a  single generation of backup, usually renaming the old
version of "filename.ext" to "filename.bak" before writing a
new "filename.ext" to disk. When  a  new  revision  is again
saved, the backup file saved earlier is wiped  out.  This is
not always  satisfactory. Who hasn't  changed his mind later
and  wanted   to  return  the  file  to  its  state  several
generations earlier?  Sometimes, we discover  a  major error
several revisions later, and the  loss  of  earlier versions
seriously sets back our work.

For these reasons, some mainframe operating systems (such as
VAX/VMS)  provide the option of saving multiple  generations
of backup.  Not only the previous version of a file,  but as
many generations as the  user  wishes (or as many as can fit
in his disk space) can be preserved. MULTIBAK is  a  set  of
programs intended to provide  the same facilities  for   IBM
compatible PC systems.

Any computer work that creates multiple changes in files can
be made less frustrating  and  safer  from disaster by using
this collection  of  programs.    When  editing  a document,
writing a program, or developing a spreadsheet, for example,
one  might create a backup almost at the  stroke  of  a  key
whenever significant changes are made, accumulating versions
until a final  product  is completed and verified. Of course
this can also be  done by means of DOS commands, without the
use of a special program.  One would  examine  the directory
to see what file name hasn't yet been used, then use the DOS
RENAME or COPY command  to  create  the backup required, and
then save the  current  version. Ultimately, we also have to
erase the backups, and we are not always in  a  position  to
use  wildcards safely.  We don't usually  do  all  of  this,
because it is  a  lot  of  trouble and distracts us from our
work.  MULTIBAK does  it  for  us, conveniently, with little
distraction.  Like a more  comfortable  seatbelt, it adds to
safety because it is more likely to be used.

The  freely  distributed version provides  two  versions  of
MULTIBAK: one which copies  the  file  and one which renames
it; a thorough documentation file; and PURGE,  a program for
conveniently and  safely  erasing  backup  files. Registered
users receive, in addition, two memory resident versions and
two  additional utilities: REVERT, which quickly and  simply
returns to an  earlier  version of the file while preserving
the current version, and  RENUMBER,  a  facility to change a
broken series of backup names to an unbroken sequence.

Hardware Requirements : IBM compatible computer.

Other Requirements : DOS 2.x or higher.