CPM Zip Utilities
                             =================
         http://www.mdfsnet.f9.co.uk/Software/Filing/CPMZip.zip

Introduction
------------
ZIP appears to no be the most common method of archiving and compressing
files, and ZIP program are available on a wide variety of platforms. These
utilities are available in various places, but they are usually stored as
.LBR files, containing ?Z? files.  Most of the PC-based browsers I have
access to mangle the content of files by converting CRs to LFCRs, even if
they are not text! So, to get around these problems, I spent some time
FTPing the original files, FTPing some utilties to un-LBR them, FTPing
some utilities to un-?Z? them, testing them, re-ZIPing them and placing
them on my internet site for people to access.

Contents
--------
UNZIP099.ZIP - Unzips zip files            - Steve Greenberg's original
UNZIP15.ZIP  - Unzips zip files            - Gene Pizzetta's updates
ZIPDIR11.ZIP - Lists contents of zip files - Jeffery Foy's update of Steve
                                             Greenberg's original

Source and documentation is included.  I am looking for and/or working on
a ZIP file creator for CPM.

Limitations
-----------
These currently only recognise storage methods 0 to 6. Most modern
(PC-based) Zip programs store with method 8 (deflate).  If you wish to
create zip files that are extractable with the current CPMZip programs,
use method 0 ("stored" or "no compression").  I am currently extending
CPMZip to be able to extract deflated entries.

There is also the problem of how to unzip the zip files that contain the
unzipper.  To get around that I have also stored the individual files
within the zip files in directories, unzip099, unzip15 and zipdir11.  That
still leaves the problem of some browsers mangling files, but I'm looking
into that.