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      STACKER NOTE                                         STACKER NOTE
                CONFIGURING A CD-ROM ON A SYSTEM WITH STACKER
                          (Applies to Stacker 4.0)
      STAC FAX  4514 (03-25-1994)
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      BACKGROUND
      
      If you're using a CD-ROM, you may have to reconfigure it to use a
      new drive letter.  Most CD-ROMs are assigned drive letters by the
      MSCDEX.EXE program through AUTOEXEC.BAT, after Stacker drive
      letters are assigned.  If your drive letter has changed as a
      result of installing Stacker, you may need to reconfigure either
      your Stacker or CD-ROM drive letter. Which strategy you use will
      depend upon which version of DOS you are running.
      
      CONFIGURING THE CD-ROM FOR PRELOADING COMPRESSION
      
      If you are using a version of DOS that preloads compression (MS-
      DOS 6.x, Novell DOS 7, and most releases of PC-DOS 6.x), Stacker
      Setup will detect your CD-ROM. Setup will then configure Stacker
      so that its drive letter assignments will begin after the CD-ROM
      drive. If you add a CD-ROM drive later you may have Stacker start
      assigning drive letters at a point after the CD-ROM drive.  For
      example, if your configuration, including the CD-ROM, uses
      letters C through E, you can tell Stacker to start assigning new
      drive letters with drive F.
      
       1.  From a DOS prompt, type:
           ED /I <enter>
           This will bring up your STACKER.INI file in a text editor.
       2.  Press <Enter> to insert a new line.
       3.  Arrow up to the new line and type:
              /BD=drive
           where drive is after the last drive letter you wish to
           preserve.  For example, if you want to maintain the identity
           of drives C through E, use /BD=F
       5.  Press CTRL+Z to save the STACKER.INI file.
       6.  Restart your computer.
           
      CONFIGURING THE CD-ROM FOR ALTERNATE VERSIONS OF DOS
      
      If you're not using a preloading version of DOS, you must
      reconfigure the CD-ROM to use the next drive letter after
      Stacker.  For example, if your Stacker configuration uses letters
      C through F, you can reconfigure the CD-ROM as drive G.
      
       1.  Edit your CONFIG.SYS file by typing ED /C <enter>.  The
           lines and sequence should be something like this:
              DEVICE=C:\DOS\SETVER.EXE
              DEVICE=C:\STACKER\STACKER.COM
              DEVICE=C:\STACKER\SSWAP.COM (this line may not appear)
              DEVICE=<CDROM DRIVER COMMANDS>
           where <CDROM DRIVER COMMANDS>  is your CD-ROM device driver
           and switches.  The CD-ROM driver line is already in your
           CONFIG.SYS file - just make sure that it loads after
           STACKER.COM (and SSWAP.COM if it appears) as shown. Save the
           file and exit the editor.
       2.  Type C:\STACKER\STACKER <enter> to identify the drive
           letters used at boot time.  For example, if STACKER shows
           that you are using drives C through F, then G is the next
           available drive letter.
       3.  Edit your AUTOEXEC.BAT file by typing ED /A <enter>.  The
           MSCDEX line has this general format:
              MSCDEX /D:name /M:x /V /L:letter /E
       4.  Change letter to the next available drive letter.  If G is
           the next drive letter, the line now looks like this:
              MSCDEX /D:name /M:x /V /L:G /E
           Save the file and restart your computer.
       5.  Verify that the CD-ROM is active by loading a CD and
           checking its contents.  For example, if your CD-ROM is drive
           G, type DIR G:   <enter> from DOS, or click on the G drive
           icon in Windows File Manager.
       6.  Re-setup any applications or programs that have to recognize
           the CD-ROM drive letter automatically.
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      Copyright 1994 Stac Electronics
