UnZip

                     Version 2.0, 09-09-89

                     Zipfile Extract Utility

                           UnZip20.ZIP

    Copyright (C) 1989 Samuel H. Smith;  ALL RIGHTS RESERVED


'UnZip' is a small Zipfile extract utility.   It is written to be
as small and portable as possible -- ideal as a starting point
for handling .ZIP files in non-IBM environments.

Source code is provided in C and Turbo Pascal.  If you port this
program to a non-IBM system, I would appreciate a copy of the
ported source and exec files.


Usage
-----
   unz filename[.zip]           ;pascal language version
   unzip filename[.zip]         ;C language version


Revision history
----------------

3-3-89
   Initial alpha test release.

3-5-89
   First fully operational release.  Does not implement CRC
   verification, but should correctly unzip all compression
   methods.

3-6-89
   Corrected end-of-file detection in both shrink and reduce
   expanders.  Resulting files should now always have the correct
   size.  Added ".ZIP" default to unzip.c to match calling
   conventions of unz.pas.

3-8-89
   Moved machine and operating-system specific code to a block
   starting around line 180.  Added code to swap bytes on host
   machines that store the high order bytes in lower address
   locations than the low order bytes.

3-15-89
   Added CRC checking in UNZIP.C.  Speeded operation by about
   150%.

   I'm spending my time on the C version now and don't plan to do
   any further work on the pascal.  If you're using the pascal
   version please contact me.

9-9-89
   Addition of new "un-implode" logic to handle new compression
   format included with PKZ101.



LICENSE
=======

You may copy and distribute this program freely, provided that:
    1)   No fee is charged for such copying and distribution, and
    2)   It is distributed ONLY in its original, unmodified
         state.

If you wish to distribute a modified version of this program, you
MUST include the source code.

If you modify this program, I would appreciate a copy of the new
source code.  I am holding the copyright on the source code, so
please don't delete my name from the program files or from the
documentation.


SUPPORT
=======

I work very hard to produce a software package of the highest
quality and functionality.  I try to look into all reported bugs,
and will generally fix reported problems within a few days.

IN NO EVENT WILL I BE LIABLE TO YOU FOR ANY DAMAGES, INCLUDING
ANY LOST PROFITS, LOST SAVINGS OR OTHER INCIDENTAL OR
CONSEQUENTIAL DAMAGES ARISING OUT OF YOUR USE OR INABILITY TO USE
THE PROGRAM, OR FOR ANY CLAIM BY ANY OTHER PARTY.

If you have any questions, bugs, or suggestions, please contact
me at:

                  The Tool Shop BBS
                  (602) 279-2673 (FREE LINE, USR 2400)
                  (602) 264-3969 (HST 9600)
                  (602) 270-0239 (HAYES 9600)

The latest version is always available for downloading.

Enjoy!     Samuel H. Smith
           Author and Sysop of The Tool Shop.