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       STACKER NOTE                                         STACKER NOTE
                              NOT ENOUGH ROOM FOR
                         A WINDOWS PERMANENT SWAP FILE
                  (Applies to Stacker for Windows & DOS 3.x)
       STAC FAX 31201  (08/19/93)
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       BACKGROUND
       
       If Windows is already installed when you install Stacker 3.x,
       Setup allows enough uncompressed space for the existing permanent
       swap file (which must remain uncompressed). If you installed
       Windows later or your permanent swap file wasn't large enough,
       there won't be enough uncompressed space. You'll have to make
       more uncompressed space to enlarge the existing swap file or to
       create one for the first time.
       
       Windows 3.1 will not assign a swap file to a logical device (such
       as RAM drives or Stacker drives) so you need space on the
       uncompressed drive for a Windows swap file. Windows requires that
       the space dedicated to a swap file be physically contiguous (all
       in one complete unbroken piece).
       
       SOLUTION
       
       Stacker lets you increase the uncompressed space on a system
       after you have installed Stacker. Of course, this decreases the
       Stacker drive size. If your Stacker drive has a total of 80 MB,
       making 5 MB more uncompressed space decreases the Stacker drive
       to 70 MB. You can use the STAC Toolbox or the DOS command line to
       change the Stacker drive size.
       
       Disable Disk Cache
       
       Disk caching interferes with the process of changing the drive
       size. Stacker can't disable all disk caches, so disable yours
       before you start.
       
       The most common disk cache among Windows users is SMARTDRV.EXE.
       Stacker can disable this one, but it doesn't always cancel
       SMARTDRV.SYS or PCKWIK. When in doubt about your disk cache,
       disable it for this process.
       
       To disable a cache:
       
        1. Open your CONFIG.SYS file with any text editor ( DOS EDIT,
            Windows SYSEDIT or your favorite one).
        2. Type:
               REM<space>
           as the very first characters of the line that loads the
            cache.
        3. Save the file and exit to DOS.
        4. Open your AUTOEXEC.BAT file using the same editor.
        5. If a cache is loaded, type:
               REM<space>
           as the very first characters of the line.
        6. Save the file and exit to DOS.
            
       The following examples show how the lines might look when you get
       finished.
       
            CONFIG.SYS:
               REM DEVICE=C:\DOS\SMARTDRV.SYS 1024
            AUTOEXEC.BAT:
               REM C:\WINDOWS\SMARTDRV
       After you have made the changes to your startup files (CONFIG.SYS
       and/or AUTOEXEC.BAT),  restart your system. Stacker will
       synchronize the files and restart again if your C drive is
       compressed.
       
       To make more uncompressed space using STAC Toolbox:
       
        1. At the DOS prompt, type STAC to open the Toolbox. (If you
            get "Bad command or file name", the Stacker directory is not
            in the path. Just change to the directory where the Stacker
            program files are located and retype the command STAC.)
        2. Use the arrow keys to highlight Stacker Drive Size and press
            ENTER.
        3. If you have more than one Stacker drive, select which one
            you wish to change and press ENTER.
        4. Use the down arrow to highlight More Uncompressed Space
            Available and press ENTER.
           Follow the instructions on the screen as the Stacker
            Optimizer, SDEFRAG, fully defragments your drive before it
            can change the size. When the defragmentation is done,
            you'll have to enter the amount of uncompressed space you
            wish to have. You must enter the size in K (kilobytes), so
            multiply the number of MB of uncompressed space you desire
            by 1024. For example, for 4 MB, you would type 4096.
        5. Type the amount of space and press ENTER.
        6. Examine the summary of changes. The summary window offers
            these choices:
                 Perform changes on Stacker drive
                 Modify settings
                 Exit without changes
           "Perform changes" modifies Stacker and tells you to press
            ENTER to restart. The uncompressed space will appear on the
            drive that swaps with the Stacker drive you modified.
           "Exit" lets you exit the change process without modifying
            any Stacker drives.
           "Modify settings" lets you change the size if you want.
        7. Use the arrow keys to highlight your choice and press ENTER.
            For each MB you choose to uncompress, you will lose about
            two MB from the Stacker drive you are modifying.
       After the system restarts, you can reactivate your cache. Just
       remove the REM that you inserted earlier and restart again.
       Stacker will take care of updating the changes, and you will be
       back to your former configuration with enough uncompressed space
       for a swap file. Then use the appropriate steps in Windows 3.1 to
       create your swap file.
       
       To make more uncompressed space using the SDEFRAG command:
       
        1. At the DOS prompt, type:
               SDEFRAG /GP <Enter>
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       Copyright 1993, Stac Electronics