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Software Vault: The Gold Collection
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Software Vault - The Gold Collection (American Databankers) (1993).ISO
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CLN21.DOC
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1993-04-08
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C L N
Version 2.1
Documentation
CLN Copyright 1992, 1993 Chang Ping Lee ALL RIGHTS RESERVED
CLN Copyright 1992, 1993 Chang Ping Lee page 1
Table Of Contents
Disclaimer of warranty. . . . . . . . . . . . . . . . . . . . 2
License . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1. Introduction . . . . . . . . . . . . . . . . . . . . . . 4
2. How to install and run CLN . . . . . . . . . . . . . . . 5
3. Configuration file and command line arguments. . . . . . 6
4. How do I know that CLN really works. . . . . . . . . . . 7
CLN Copyright 1992, 1993 Chang Ping Lee page 2
DISCLAIMER OF WARRANTY
THIS SOFTWARE AND MANUAL ARE SUPPLIED "AS IS." THE AUTHOR HEREBY
DISCLAIMS ALL WARRANTIES RELATING TO THIS SOFTWARE AND ITS
DOCUMENTATION FILE, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
TO DAMAGE TO HARDWARE, SOFTWARE AND/OR DATA FROM USE OF THIS
PRODUCT. IN NO EVENT WILL THE AUTHOR OF THIS SOFTWARE BE LIABLE
TO YOU OR ANY OTHER PARTY FOR ANY DAMAGES. YOUR USE OF THIS
SOFTWARE INDICATES THAT YOU HAVE READ AND AGREE TO THESE AND
OTHER TERMS INCLUDED IN THIS DOCUMENTATION FILE.
DUE TO THE NATURE OF EVOLVING PROGRAMMING AND THE VARIOUS
HARDWARE AND SOFTWARE ENVIRONMENTS IN WHICH THIS SOFTWARE MAY
BE USED, IT IS UNDERSTOOD THAT OCCASIONAL "BUGS" OR UNFITNESS
MAY ARISE. THE USER SHOULD ALWAYS TEST THIS SOFTWARE THOROUGHLY
WITH NON-CRITICAL DATA BEFORE RELYING ON IT.
CLN Copyright 1992, 1993 Chang Ping Lee page 3
LICENSE
1. In return for the payment of a one time fee, the customer is
granted a non-commercial or commercial license.
2. If the registration is for a non-commercial license the customer
can use the software for personal backup or other usages in which
the customer make no profit and the duplicated diskettes of any
particular source diskette (or image file) are not distributed to
more than ten persons. In addition, the software may not be used in
any business, organization, institution or government agency.
3. If the registration is for a commercial license the customer can
use the software in a business, organization, institution or
government agency, for profit or non-profit purposes. With a
commercial license the customer can distributed the duplicated
diskettes to as many persons as he or she likes
4. The customer may use the product just-like-a-book which means
this software can be used by more than one person and can be moved
from one computer to another so long as there is NO POSSIBILITY of
it being used by two different persons on two different computers
at the same time, just like a book can not be read by two different
persons in two different places at the same time.
5. This software and its documentation and all supplemental files
are property of the author and may not be duplicated for sale to
any third parties without written permission from the author.
6. The customer agrees that this product is protected by United
States copyright law and international copyright treaty provisions.
Purchase of this license does not transfer any right, title or
interest in the product to the customer except as specifically set
forth in this license agreement.
7. The author of this software product reserves the right to
terminate this license upon breach.
CLN Copyright 1992, 1993 Chang Ping Lee page 4
1. INTRODUCTION:
CLN (smart CLeaN) is a utility to make full use of cleaning kits
sold by 3M, Memorex and other companies.
Don't panic when you get the "General failure reading drive A:"
message from DOS. Your diskette drive may not have problem other
than its head being dirty. In this case, all you have to do is
to use the cleaning kit and CLN to clean it up.
Without CLN, all you can do is to use commands such as DIR to
get the disk drive moving and bring head into contact with the
cleaning disk and the cleaning solution on it. However, there
are two problems that only CLN can help you.
Firstly, how many DIR commands you need to keep typing to keep
the disk head in contact with the cleaning disk for 30 to 60
seconds? With CLN you only need to type CLN to start and press
the ESC to end the process, no keystrokes in between. CLN also
"reads" both sides of every "track" to make full use of your
cleaning kit. Try CLN once and you will know how many keystrokes
it can save for you.
Secondly, since there is no data on the disk DOS will stop after
it fails to access the first track. This means you may only be
using 0.625% of the surface of your cleaning disk! (There are 80
tracks on a high density drive. Each track has two sides and you
are only using one side on the first track.)
CLN not only forces your system to keep on "reading" different
tracks on the cleaning disk and thus clean the head more
thoroughly but also provides you simple and easy ways to verify
that it does what it claims. Your will have the confidence that
you give your diskette drive the best care possible.
CLN Copyright 1992, 1993 Chang Ping Lee page 5
2. HOW TO INSTALL AND RUN CLN
Copy the EXE and DOC files to a directory created for DCF and
DUP. Define the PATH in your AUTOEXEC.BAT to include this
directory or the directory of a one-line batch file which
contains the path of CLN.EXE.
Before you run the program dispense cleaning solution on the
cleaning disk and then type CLN followed by the "Enter" key.
Insert the cleaning disk, close the door and it will start
cleaning. Usually the instruction of the cleaning kit recommends
that you keep cleaning the drive for 30 to 60 seconds. With CLN
that's certainly more than enough.
If you only have one or two floppy drives you can skip the rest
of this section.
In systems with four floppy drives, if a device driver which
came with the controller is installed CLN usually can detect the
drive letters automatically and the drive letters should be used
to specify the third and fourth drives. If no device driver
(TSR) is installed you need to use 3 and 4 as the drive letters
for the third and fourth drives. In this case you need to edit a
text file, CONFIG.DCF, that provides the information on floppy
drive capacity.
The following is an example of the text file in which a 1.2MB,
a 1.44MB and a 360KB drives are specified as the first, the
second and the third drives with drive letters A: B: and G:,
respectively. The 0 on the last line indicates that the fourth
drive is not installed. If all drives are defined, such as in
the example, CLN will not check with DOS for drive capacity.
This can speed up the initialization process.
$DRIVE
1 1200 A:
2 1440 B:
3 360 G:
4 0
CLN Copyright 1992, 1993 Chang Ping Lee page 6
3. CONFIGURATION FILE AND COMMAND LINE ARGUMENTS
If you have read the DOC file of DCF you can skip this section
and continue at section 4.
Cleaning the head of a disk drive is quite straightforward.
However, the program does need to know the capacity of the
drive to better utilize the cleaning kit.
Usually, CLN can detect the drive capacity automatically. In
case it fails, you can provide the information in the CONFIG.DCF
file.
EXAMPLES:
CLN A: Clean the head of drive a:.
CLN 3: Clean the head of the third drive, when device
driver is not installed.
CLN G: Same as the last example, but in this case the
driver is installed and the drive letters is G.
CLN Copyright 1992, 1993 Chang Ping Lee page 7
4. WHY DO I KNOW THAT CLN REALLY WORKS
There are two ways to verify the effectiveness of the program.
The disk head causes a "grinding sound" when it retracts to the
first track, the longer the distance the longer the sound.
Listen to your diskette drive carefully when CLN shows that it's
cleaning the last few tracks. When the track number reset to 0
you should hear the grinding sound.
You can also open the computer case and watch the disk head
moving.