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