data compression link collection


PKWare’s PKZip product popularized the Zip file format, which is now used by many commercial, shareware, freeware, and open source programs.

Zip and Unzip Using VB5 or VB6

Some sample code and a tutorial explaining how to use the InfoZip DLLs with VB.


Posted in September 12th, 2004

Ch zlib Package

Ch zlib Package is Ch interface to zlib. Ch is a C/C++ interpretive freely available from htpp:// Ch zlib Package alllows zlib applications with compression and decompression function runs in Ch across platform without compilation. Ch zlib Package includes the source code for building the binding to zlib.

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Posted in July 28th, 2004

DynaZIP ZIP/UNZIP toolkits

DynaZIP offers just about everything you’d want to work with Zip files in a Win32 environment. user Mike L. had this to say: Creates huge output executables. Features contained in multiple packages are contained in a single package in comparable products. Pricing is very steep compared to comparable products.

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Posted in July 16th, 2004


JSPFM supports the standard file operations of creation, editing, copying, moving, deleting, renaming and compression/decompression of files and directories. JSPFM also supports some special file operations specific to certain file types such as transposition and resizing of image type files.


Posted in July 10th, 2004

Managed C++ wrapper for Zlib

In this article I present a namespace of managed types that provide a wrapper to some of the standard functionalities exported by ZLib. ZLib is a well known free, general-purpose lossless data-compression library for use on any operating system.


Posted in July 10th, 2004


Use the zipdiff tool when you need to compare the contents of two zip files. It is equally suited for comparing jar files, EAR files, WAR files or RAR files. Run it standalone or as an Ant task. The tool supports three output formats: plain text, XML, and HTML. zipdiff is written in Java.

Release 0.4 is shipping as of June, 2004.


Posted in July 4th, 2004

The Heirloom Toolchest

The Heirloom Toolchest includes Open Source cpio and tar implementations running on Linux, Solaris, and Open UNIX. cpio is able to read and write all known Unix cpio archive formats, including proprietary ones, and zip files, including support for the zip64 format.

The most recent update of the project was on June 30, 2004.


Posted in July 4th, 2004

ZLib dotNet

Microsoft .NET Stream-derived objects that wrap ZLib inflate and deflate functions (C++ Mixed Mode implementation)

Version 1.0.1 is shipping as of June, 2004.

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Posted in June 27th, 2004

Zip Utils - clean, elegant, simple, C++/win32

This source code shows how to add zip/unzip functionality to your programs. Claim to fame: simplicity and clean packaging.


Posted in June 24th, 2004

MemoryStream Compression

An article that describes MemoryStream based Compression based on SharpZipLib.

Last updated June 21, 2004.


Posted in June 21st, 2004


Zipgenius is yet-another-archiver. Supports 21 different compression formats, plus a pretty long list of extras, such as FTP support, email, backup functions, and more. The long list of features might make you expect a price tag, but ZipGenius is in fact free!

Version of ZipGenius is shipping as of June, 2004.


Posted in June 14th, 2004


Published in Commercial Programs, Zip

Does everything you want, and costs a lot less than the two market leaders!

Version 3.0 is shipping as of June, 2004.


Posted in June 14th, 2004


There are two programs named SimplyZip. This is the free one from Germany. This program has an awesome list of supported archives formats.

Version 1.1 is shipping as of June, 2004


Posted in June 14th, 2004

CoffeeCup Free Zip Wizard

Your basic free zip program. Includes the normal archiving functions, plus some search, email, and ftp options as well.

Version 2.5 is shipping as of June, 2004.


Posted in June 6th, 2004


A free self-extractor bundler, it can take a standard Zip file and convert it into a self-extracting EXE, or take a self-extracting EXE and turn it into a Zip file. Free for non-commercial use, lots of nice new features in the 2.0 release.

Version 2.0 is shipping as of May, 2004.


Posted in May 31st, 2004

Code to extract plain text from a PDF file

PDF documents are commonly used and their content is usually compressed. This article shows a simple C code that can be used to extract plain text from the PDF file.


Posted in May 31st, 2004

PKWARE Developer Solutions

PKWare has created a couple of new SDKs that allow developers to create and manipulate ZIP files, as well as to take advantage of PKWares new security features.


Posted in May 31st, 2004


Published in Commercial Programs, Zip

JIMZip is an easy-to-use, yet powerful, zipping and unzipping interface for MacOS X. Using JIMZip you can compress your files with a simple drag to either the JIMZip dock icon, or dragging window. JIMZip is compatible with programs such as: WinZip, PowerArchiver, PKZip, ZipIt, Aladdin Expander, Stuffit DropZip, and more..

Version 1.42 is shipping as of May, 2004.


Posted in May 31st, 2004


Everything you wanted to know about UnZip, one of the two great Info-ZIP programs.

UnZIp 5.51 shipped in May, 2004/

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Posted in May 23rd, 2004


Zipper is a tool for inspecting the contents of a compressed archive and for extracting.

Version 0.7 is shipping as of May, 2004.


Posted in May 23rd, 2004

JZlib — zlib in pure Java

This project is an attempt to hoist zlib out of the C world and into pure Java land. This allows Java developers to take advantage of a few zlib features that aren’t available in the standard JDK packages. LGPL license.

Version 1.0.5 of Jzlib was shipping as of May, 2004.


Posted in May 22nd, 2004

bsdtar, libarchive

Libarchive is a programming library that can create and read several different streaming archive formats, including most popular tar variants and the POSIX cpio format. The bsdtar program is an implementation of tar(1) that is built on top of libarchive. It started as a test harness, but is quickly moving toward becoming a candidate system tar for FreeBSD


Posted in May 22nd, 2004


ZipInstaller is a bare-bones application framework for the
programmer who doesn’t want to learn the painful
intricacies of InstallShield or Microsoft’s installer. If
all you need to do is copy some files to a specific folder
and then create a few shortcuts and menu entries, ZipInstaller
is just the guy for you.

Version 1.11 is shipping in May, 2004.


Posted in May 16th, 2004


A versatile Visual Studio add-in to zip up Visual Studio solutions and projects


Posted in May 15th, 2004


Yet another free Zip program with the usual cast of features. Supports a pretty good variety of archives, runs under Win32 only, etc.

Filzip 3.0.1 is shipping in May, 2004.

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Posted in May 15th, 2004

12Ghosts Zip

This package includes 12Zip and 12Zip2. The first version uses Zip compatible compression, and the second uses a BWT variant.

Version 7.0 of the package is shipping as of May, 2004


Posted in May 14th, 2004

Zip and Unzip from a C# program using J# runtime

Microsoft’s implemention of J# includes the standard Java zip classes, and CodeProject contributor Valeri has figured out how to use them from a C# program.


Posted in May 10th, 2004

Compression and Encryption Sources

Links to a variety of lossless coders, includes source for Huffman, arithmetic, LZSS, and other compressors.

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Posted in May 1st, 2004


Published in Commercial Programs, Zip

AutoZIP Backup is professional software that lets you automate the backup of your precious files to a ZIP archive.

Version 1.0 of this product is shipping as of April, 2004.


Posted in April 19th, 2004

WS:Compress Out

Published in Commercial Programs, Zip

WS:Compress Out is a member of Websetters family of Microsoft Office Add-Ins. This Add-In extends the functionality of Microsoft Outlook 2000, 2002 and 2003. Every time you send an email that contains attachments, WS:Compress Out will automatically compress the attachment and resave in the mail item. This reduces the amount of storage used by you in your Outlook storage, reduces the time online and network bandwidth used, reduces the amount of storage used by your recipients - all saving you money.


Posted in April 11th, 2004