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PAK 2.50 (C) 1989-90 NoGate Consulting September 20th, 1990 Page 2
The Shareware Concept
PAK is distributed as shareware.
Shareware is commercial software distributed in an unconventional
manner. Microcomputers copy information very easily. Instead of
trying to frustrate this through copy protection, shareware takes
advantage of it to reach as many users as possible at the lowest cost.
Anyone may copy a shareware program and distribute it to whomever they
desire, provided they do not charge a fee or alter it.
Shareware isn't free. Serious shareware is as polished as any
conventional commercial product, and represents just as much
programming effort. If you use it regularly, the authors expect
compensation.
However, unlike conventional distribution, shareware allows you
to evaluate the product before you decide to purchase it. The price
is often lower, as well, because there are no advertising, packaging,
or distribution costs.
It can only work with your support. If you are still using a
shareware product after a couple of weeks, then it is obviously worth
something to you, and you should register it.
Registration and Benefits
There are three editions of the compression routines in PAK
available. The first is the command line edition, included in the
evaluation package (of which this file is a part) distributed as
shareware. Registration of this edition is $15, and entitles you to a
disk with a copy of PAK registered in your name.
The second is the full screen edition, also known as PAKF. PAKF
is a fully windowed program which displays archive contents and file
directories, and allows easy tagging of files to be compressed or
extracted. Registration of this edition is $30, and entitles you to a
disk with both the full screen and command line editions.
The third, for programmers, is a library of data compression
routines suitable for inclusion in your own programs. This toolkit
can be used in practically any application, since all compression is
done on buffers in memory, not on disk. Programs created with the
toolkit do not require a royalty so long as they do not compete with
PAK. For example, you can compress your own program's data, or
distribute your software in compressed form without royalty. On the
other hand, a general-purpose archiving, installation, or backup
utility would require a special licensing agreement.
Registration of this edition is $75, and entitles you to a disk
with object files suitable for use with Turbo Pascal, Turbo C,
Microsoft C, or assembler. The toolkit is usable with OS/2 and
Windows 3.0. The toolkit disk also includes the other two editions of
PAK, as well as example programs in Pascal and C.
To register your copy of PAK, send in a completed copy of the
enclosed order form, call the NoGate BBS to order via questionnaire,
or call NoGate Consulting at (616)455-6270.
Obtaining Updates
The fastest way for registered users to obtain an update of any
of the editions of PAK is to call our bulletin board at (616)455-5179.
The BBS has a 9600 baud US Robotics Dual Standard modem, so any modem
from 1200 to 9600 baud should work.
If you have never called the BBS before, you will have to start
as a new user, even if you are a registered PAK user. This entails
choosing a password and leaving some information such as your phone
number and city.
If you are a registered user, you can download PAK, PAKF, and the
Toolkit through the Update Door. Before you can do so, however, you
will have to leave a message to the Sysop asking for access to that
door.
If you don't have a modem, or don't want to call our BBS, you can
call for an update at (616)455-6270, FAX us at (616)455-8491, or send
us a letter.
Updates are free from the BBS, and $5.50 by mail within the
United States or $7 overseas. Updates of the Toolkit from release 1.6
or earlier are $25.
Credits
ARC is a registered trademark of System Enhancement Associates,
and PKZIP is a registered trademark of PKWare, Inc. NoGate Consulting
is not associated in any way with System Enhancement Associates or
PKWare.
We would like to thank several people:
The various authors of the public-domain De-Arc'ing utility, for
providing insights into the (sometimes very strange) internal workings
of ARC:
Roy Collins, David W. Carroll, Richard P. Byrne, Robert D. Tolz,
and Jim North.
We must also credit Terry A. Welch, whose article "A Technique
for High Performance Data Compression", IEEE Computer Vol 17 No 6
(June 1984) seems to have started all the research on Lempel-Zev
coding.
Spencer W. Thomas, Jim McKie, Steve Davies, Ken Turkowski, James
A. Woods, and Joe Orost, who are the authors of the UNIX compress
utility.
Ray Kaliss of SDNet/works!, who proposed the Security Envelope
concept.
And all of the people whose suggestions we added to PAK, such as
the temporary path, sorting, wildcards for archives, path support, and
remarks.
PAK version 2.50 Order Form
-----------------------------------------------------------------
Make checks payable to:
NoGate Consulting
P.O. Box 88115
Grand Rapids, MI 49518-0115
-----------------------------------------------------------------
Qty
___ Command line edition of PAK @ $15 each $______
___ Full screen edition of PAK (PAKF) @ $30 each $______
___ Programmer's edition of PAK @ $75 each $______
Subtotal $______
Michigan residents please add 4% sales tax. $______
Shipping and handling - inside the United States $3.50
- or -
- overseas $5.00
Credit Card orders add 3% surcharge $______
Total $______
Diskette type (check or circle one): [ ] 5.25" [ ] 3.5"
Payment: (check or circle one):
[ ] Check [ ] Money Order [ ] Visa [ ] MasterCard [ ] AmEx
Credit Card #__________________________________________________
Expiration Date _______ Signature ____________________________
Credit Card Orders may be made by phone - (616)455-6270
or via the NoGate BBS - (616)455-5179
or via FAX - (616)455-8491
Checks and Money Orders must be drawn on U.S. banks in U.S. funds
-----------------------------------------------------------------
Name_______________________________________________________
Company_______________________________________________________
Address_______________________________________________________
______________________________________________________
Phone_________________________ Bus.________________________
Where did you obtain PAK?
_______________________________________________________
Comments_______________________________________________________