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1993-08-02
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WIPIT Version 1.00
August 2, 1993
by Neil Edward Parks
This program and documentation are Copyright (c) 1993 by Neil
Edward Parks.
WARNING:
I do not warrant or guarantee that this program will do anything
except take up space on your disk. I think that if you exercise
reasonable caution in using it, it will probably do what it
should do. But I take absolutely no responsibility for any
data loss or other damage it may cause. Use at your own risk.
By using this program, you agree to the terms stated above.
I recommend that before running WIPIT, you run CHKDSK or a
similar diagnostic program to verify that your disk is free of
lost clusters, crosslinked files, or similar anomalies. I have
no idea what would happen if WIPIT were to run on a disk
containing errors in its file structure, and hope I never have to
find out.
PURPOSE:
WIPIT will fill the erased space on your disk with garbage
characters so that erased files cannot be Undeleted.
HOW IT WORKS:
When you run WIPIT, it will make two passes through the
unassigned clusters on your hard disk. The first time through,
it will fill those clusters with the Hex FF character. The
second time through, it will fill them with Hex 00. As it
proceeds, it will report on its progress.
SLACK BYTES:
As you probably know, DOS allocates file space on your disk in
units called "clusters". The size of a cluster varies with the
size and type of disk and the partition size.
If a file does not fill its assigned cluster or clusters
completely, unused bytes within the last cluster may contain
garbage, or leftover data from a file that formerly occupied that
cluster, or leftover memory swap data.
WIPIT cannot do anything about those slack bytes. It works only
on clusters that are not currently assigned to any file.
PROGRAM INTERRUPTION:
If the program's operation is interrupted due to power outage or
some other reason, you will probably find a very large file
called WIPIT.TMP in your root directory. As the extension
implies, it is a temporary file which you may (and should)
delete.
If any program terminates abnormally, it is always a good idea to
run CHKDSK or a similar diagnostic program to verify that your
file structures have not been harmed.
DISTRIBUTION AND USE:
WIPIT 1.00 is free for personal, non-commercial use. Business
users, please see the file SITELIC.NEP for information on a site
license.
You may freely distribute WIPIT to others under the following
conditions:
--No fee may be charged for the program (except that shareware
vendors, clubs, etc. may charge their usual disk duplication
fee).
--All EXE and DOC files must be distributed together, unmodified.
HOW TO CONTACT ME:
If you have any questions or suggestions regarding this program,
you can reach me at any of the following:
Internet:
aa640@cleveland.freenet.edu
Internet:
neil.parks@pcohio.com
Fidonet:
1:157/200 (PC Ohio)
US Snail:
2504 Brentwood Road, Beachwood, OH 44122-1554