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      STACKER NOTE                                         STACKER NOTE
                  UPGRADING FROM STACKER 1.X TO STACKER 4.0
                   (Applies to Stacker versions 1.x & 4.0)
      STAC FAX  4005 (06-17-1994)
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      BACKGROUND
      
      Stacker version 1.x did not synchronize the boot files on the
      computer. This method was changed in all later Stacker versions.
      But this means that you must do a one-time synchronization of the
      boot files if you upgrade directly from Stacker 1.x to 4.0.
      
      SOLUTION
      
      Before you upgrade from Stacker 1.x:
      
       1.  At the DOS prompt, type SWAPMAP and press ENTER to determine
           which drive letter is being swapped with C.  Write that
           letter here.________________
       2.  Insert Stacker 4.0 floppy disk #2 into its drive.
       3.  Type:
               drive:SATTRIB -R C:\AUTOEXEC.BAT <enter>
           where drive: is the letter of the floppy drive where you
           inserted floppy disk #2. This removes the read-only
           attribute from the AUTOEXEC.BAT file.
       4.  Type:
               COPY drive:\AUTOEXEC.BAT C:\ <enter>
           where drive: is the drive letter with which C is being
           swapped (determined in step #1).
       5.  Type:
               COPY drive:\CONFIG.SYS C:\ <enter>
           where drive: is the drive letter with which C is being
           swapped (determined in step #1).
       6.  Install Stacker 4.0 starting with Disk 1.
       7.  If you receive Setup Error 2019: This means that the Setup
           program is having difficulty with the swapping of the
           Stacker drive.
           a. Restart your system with Stacker version 1 still active.
           b. Insert Stacker 4.0 Disk # 1 into its drive and go to that
           drive.
           c. Type: SSWAP C: drive: <enter>, where drive : is the
           letter you determined in step #1. This will "unswap" the
           Stacker drive and its host drive.
           d. Again type SSWAP C: drive: <enter>, where drive: is the
           drive letter you determined in step # 1. This will restore
           the Stacker drive map, and will activate the version 4.0
           SSWAP.COM.
           e. Install Stacker 4.0 starting with Disk 1.
           
      Note: If you are using DOS 5 or an operating system that does not
      preload compression, you need to add the /SYNC+ option to your
      STACKER.INI file to synchronize configuration files on compressed
      and uncompressed drives. (From the Stacker directory, type ED to
      start the editor. Then, choose STACKER.INI from the File menu.
      Add the /SYNC+ on its own line anywhere in the file.)
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      Copyright 1994 Stac Electronics
