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      STACKER NOTE                                         STACKER NOTE
                     STACKER 4.0 FEATURES AND BENEFITS                             
      STAC FAX  1110 (02-14-1994)
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     Why Upgrade To Stacker 4.0?
        Get the Most Space with Stacker 4.0. Guaranteed.
        -  Stacker 4.0 for Windows & DOS takes real-time compression to
           a new level --- beyond the 2:1 barrier!
        -  Stac's  patented Stacker LZS technology, now in its  fourth
           generation, uses new Stacker SmartPack to store  your  data
           even  more  efficiently, giving you the maximum  disk  space
           possible. The larger your drive, the greater the gain you'll
           get from Stacker 4.0 for Windows & DOS.
        -  With  Stacker  4.0 you will gain, on average, fifty  percent
           more  free  space  than what you gained  with  your  current
           version  of Stacker. On a 250 megabyte hard drive  that  was
           that  was  increased  to  500 megabytes  with  your  current
           version  of Stacker, Stacker 4.0 will give you 125 megabytes
           of extra space for your applications.
        -  Stacker  4.0  will outperform any real-time data compression
           product on the market --- or your money back.
        Get Quick Access to All Stacker tools from Windows
        -  The  new Stacker Windows Toolbox makes managing your  drives
           easier than ever, you never have to leave Windows.
        -  You  can  see  all your drives at a glance and  choose  your
           compression controls from the handy Stacker toolbar.
        -  Easy  to  read  gauges show you how much  of  your  disk  is
           devoted   to   programs  and  data,  how  much  is   already
           compressed,  and  how much of your data  has  not  yet  been
           backed up.
        -  New  sight  and  sound warnings alert you to  changing  disk
           conditions, including how much disk space you have left.
        Lower Your DOS Memory Usage
        -  If  you  use  DOS 6 on a 386 or higher system with  extended
           memory,  Stacker  4.0  only requires  17  kilobytes  of  DOS
           conventional memory, memory below 1 megabyte, as compared to
           the 40 kilobytes of DOS conventional memory used by previous
           versions of Stacker and other compression utilities.
      Features And Benefits
        Features Of Stacker 4.0
        1. The Most Space, Guaranteed.
        -  Stacker 4.0 for Windows & DOS takes real-time compression to
           a new level --- beyond the 2 to 1 barrier!
        -  Stac's  patented Stacker LZS technology, now in  its  fourth
           generation,  uses new Stacker SmartPack to store  your  data
           even  more  efficiently, giving you the maximum  disk  space
           possible.
        -  With  Stacker  4.0 you will gain, on average, fifty  percent
           more  free  space  than what you gained  with  your  current
           version  of Stacker. On a 250 megabyte hard drive  that  was
           that  was  increased  to  500 megabytes  with  your  current
           version  of Stacker, Stacker 4.0 will give you 125 megabytes
           of extra space for your applications.
        -  Today's  applications require more space than ever;  fifteen
           to  twenty megabytes of space is not uncommon. With  Stacker
           4.0  you don't need go through the hassles of adding  a  new
           hard  drive,  such as, costly hardware and installation,  or
           finicky  system  configuration problems.  With  Stacker  4.0
           getting  extra drive space is only minutes away. If  you  do
           outgrow your current hard drive, Stacker 4.0 will make  sure
           that you get the very most from your hardware investment.
        -  Stacker  4.0  will outperform any real-time data compression
           product on the market --- or your money back.
        2. Get Quick Access to All Stacker Tools from Windows
        -  Now, all of Stacker's tools are available from either DOS or
           Windows. If you spend most of your time in Windows,  Stacker
           4.0's  new  Windows Toolbox will give you control over  your
           Stacker drives from within Windows. If you prefer to work in
           DOS, the familiar Stacker Toolbox is there for you.
        -  The  new Stacker Windows Toolbox makes managing your  drives
           easier  than ever. You can see all your drives at  a  glance
           and  choose your compression controls from the handy Stacker
           toolbar.
        -  The Stacker 4.0 Windows Toolbox has easy to read gauges that
           show  you  how much of your disk is devoted to programs  and
           data,  how much is already compressed, and how much of  your
           data has not yet been backed up.
        -  New  sight  and  sound warnings alert you to  changing  disk
           conditions, including how much disk space you have left.
        3. Lower Your DOS Memory Usage
        -  If  you  use  DOS 6 on a 386 or higher system with  extended
           memory,  Stacker  4.0  only requires  17  kilobytes  of  DOS
           conventional memory, memory below 1 megabyte, as compared to
           the 40 kilobytes of DOS conventional memory used by previous
           versions of Stacker and other compression utilities.
        -  Stacker  4.0  is  able to do this through  the  use  of  DOS
           Protected  Mode  Services (DPMS) technology,  licensed  from
           Novell,  which  moves a large portion of the Stacker  driver
           into a protected area of extended memory.
        -  To  use  the  DOS Protected Mode Services (DPMS) feature  of
           Stacker  4.0,  you  must have a 386 or  higher  system  with
           extended  memory, and you must be running DOS 6.0 or  higher
           (MS-DOS 6.0 and 6.2, PC-DOS 6.1, Novell DOS 7.0).
        4. New  Safety  Feature! Safeguard Your Data with  Stacker's
           New Protected Mode Driver
        -  Stacker  has  always been the leader in safety.  For  DOS  6
           users,  Stacker 4.0 uses DOS Protected Mode Services  (DPMS)
           technology, licensed from Novell, to move a large portion of
           the Stacker driver into a protected area of extended memory.
           The  use  of DPMS ensures that other applications  won't  be
           able to interfere with the Stacker driver.
        -  No  other  stand-alone data compression product  offers  you
           this added safety.
        -  To  use  the  DOS Protected Mode Services (DPMS) feature  of
           Stacker  4.0,  you  must have a 386 or  higher  system  with
           extended  memory, and you must be running DOS 6.0 or  higher
           (MS-DOS 6.0 and 6.2, PC-DOS 6.1, Novell DOS 7.0).
        5. New  Safety Feature! Automatically Back Up Your Important
           File System Information
        -  New  Stacker  AutoSave  maintains  duplicate  sets  of  your
           important  file system information in a secure area  outside
           of the compressed disk.
        -  Stacker   4.0's  AutoSave  feature  automatically   backs-up
           important file system information including the boot sector,
           the   file  allocation  table  on  the  compressed  and  the
           uncompressed drive, and the root directory.
        -  These  important backups are automatically and transparently
           updated to ensure you're safe to the last back-up.
        6. Tune Your System To Get The Maximum Space Or Speed
        -  With Stacker 4.0, you have 10 settings to choose the best
           balance of space and speed for your computer. Fine-tune with
           Stacker MaxSpace, Stacker MaxSpeed, or anywhere in between.
        -  You can access the Stacker Tuner from the new Stacker
           Windows Toolbox.
        7. Automatically Adjusts To Your Data.
        -  While   other   products  set  a  predetermined  compression
           threshold,  Stacker adjusts the compression  for  your  data
           giving you the most disk space possible.
        -  Every time you run the Stacker Optimizer (Sdefrag) with  the
           MaxSpace  option, your drive's compression will be  adjusted
           to give you the most disk space possible.
        8. Store Even More Data on Floppies
        -  Our  enhanced Stacker Anywhere gives you up to 3.4 megabytes
           of space on floppy disks.
        -  Like  before,  Stacker Anywhere lets you read and  write  to
           compressed  floppies and other removables on  machines  that
           aren't running Stacker.
        -  You can be confident your data is always accessible
           anywhere you need to work.
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      Copyright 1993 Stac Electronics
