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Simtel MSDOS 1992 June
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SIMTEL_0692.cdr
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msdos
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dskutl
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fix_disk.arc
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FATSWAP.DOC
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1987-03-04
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FATSWAP : Copy Second Copy of FAT to First Program
Version 1.00, 04-Mar-1987
SMG Software
(C) Copyright 1987 by
Steven Georgiades
All Rights Reserved
Most disks contain two copies of the FAT. This program enables
the user to copy the second copy of the FAT over the first, in the
event that the first copy of the FAT is corrupted. In normal
operation, both copies of the FAT should be identical, so running this
program on a good disk should have no adverse affects. HOWEVER, it is
best to play it safe, and only run this program when trying to recover
data from a crashed disk. If you have crashed a disk, and CHKDSK
reports a large number of lost clusters and/or a "Probable non-DOS
disk" message, then your FAT is probably corrupted. There is a
possibility that only the first copy of the FAT was corrupted, but
DOS's CHKDSK only checks the primary FAT. This program will allow you
to copy the secondary FAT over the primary. If you then run CHKDSK,
and are lucky, then hopefully you will get no errors. If you still do
get errors, you then need to take drastic measures, such as using the
CLEARFAT program.
Command Format:
FATSWAP [d:]
d: Optional drive letter. If this is omitted, the default
drive is used.
Examples:
FATSWAP A: (Will swap the FATs of drive A:)
FATSWAP (Will swap the FATs of the default drive)
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This software is hereby released into the public domain, and may
therefore be freely copied and distributed within the following
restrictions:
1). It is distributed in its original, unmodified form, including
source code and documentation.
2). No fee is charged for use, copying or distribution.
3). The program may not be included with other goods or services
supplied for a fee, unless written permission to do so is
obtained in advance from the author.
This program is provided AS IS without any warranty, expressed or
implied, including but not limited to fitfulness for a particular
purpose.
If you have any questions or comments about this or any other SMG
program, write to me at the following address:
Steven M. Georgiades
SMG Software
701-H South Hayward Street
Anaheim, CA 92804
If you are using this program and find it of value, your contribution
in any amount ($5.00 suggested) will be greatly appreciated. Make
checks payable to Steven M. Georgiades.
Thank you.