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-
- DOUBLESPACE
-
- DOS 6 comes with a data compression program called
- DoubleSpace. It may almost double the size of your hard drive by
- compressing files. Compression programs use a kind of shorthand
- so that repeated data is stored in less space. Actually, a
- DoubleSpaced compressed drive is a single file on an
- uncompressed drive. Such files are called Compressed Volume
- Files (CVF). DoubleSpace is invisible to your programs. You
- can use DoubleSpace on both hard disks and floppy disks.
- HOWEVER, DON'T USE IT WITHOUT READING THE CAUTIONS BELOW.
-
-
- DOUBLESPACE CAUTIONS:
-
- 1. A DoubleSpaced hard drive is more likely to give trouble
- than an uncompressed drive. If you have plenty of room on
- your hard drive, don't install DoubleSpace. You will be
- much better served with a large hard drive that is not
- compressed. To date, there have been many reports of
- problems with DoubleSpace. If you need more room, my
- advice is to buy another or a larger hard drive.
-
- 2. If you plan to use DoubleSpace, you should read the
- README.TXT file in the C:\DOS directory.
-
- 3. You should not use DoubleSpace if your drive is already
- compressed with another compression program. You could
- lose all your files!
-
- 4. If you run DoubleSpace, you will not be able to uninstall
- DOS.
-
- 5. You cannot uncompress a drive that has been DoubleSpaced.
- Microsoft did not provide an uncompress command.
-
- 6. DoubleSpace can compress a drive to a maximum of 512
- megabytes.
-
- 7. When you run DoubleSpace, DOS creates an extra drive.
- If you compressed drive C, you would then have a small
- uncompressed drive (perhaps drive H, it depends on your
- hardware). Be careful not to move or delete any of the
- files in this new uncompressed drive, or it could result in
- the data loss of your entire C drive. The files on this
- uncompressed drive are: IO.SYS, MSDOS.SYS,
- DBLSPACE.BIN, DBLSPACE.INI, and DBLSPACE.000. These
- files are Hidden and have a Read-Only attribute. To
- determine where DOS placed this uncompressed drive,
- type DBLSPACE/INFO <ENTER> after you install DoubleSpace.
- If you want to see these hidden files, you can use the
- DIR/A command. Remember, don't fool with these files!
-
- 8. Before you use DoubleSpace to compress a drive, it is a
- good idea to back up your drive. NOT DOING SO COULD
- RESULT IN A PERMANENT LOSS OF ALL YOUR DATA.
-
- 9. If you plan to install Windows, you should do it before you
- run DoubleSpace. Windows has a swap file that should be
- stored on an uncompressed drive. If you install Windows
- first, DOS will automatically take care of this for you.
-
- 10. Disable any screen blankers before you run DoubleSpace.
-
- 11. DoubleSpace cannot be run from Windows. DoubleSpace
- should be run only at the DOS prompt.
-
- 12. Use the CHKDSK command to keep an eye on any DoubleSpaced
- drive. This command will often inform you when (or if)
- there is trouble.
-
-
-
-
- This section is finished. It is an excerpt from LEARNING DOS FOR
- THE COMPLETE NOVICE, by Steven Woas, copyright 1993. When you register
- this program, you will receive the 336 page book, LEARNING DOS FOR THE
- COMPLETE NOVICE which covers DOS 3.2 through DOS 6. To register send
- $15.95 plus $2.00 for shipping to:
-
-
- Celestial Press
- 4424 Dohrcrest Dr.
- Suite C
- New Port Richey, FL 34652
-
- Phone (813) 845-8522
- US customers can order toll-free 1-800-330-3311
- Fax (813) 845-8522
-
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