The Bricolsoft Zip ActiveX Compression Component is an ActiveX data compression library that enables developers to add zip and unzip functionality to their programs. The component is PKZIP 2.04g compatible.
Includes self-extracting archive creation and memory file compression / decompression.
Created: 27/03/2009
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Zip Password Tool is an utility designed to recover lost or forgotten passwords for encrypted ZIP archives created using WinZip, PKZip or any other ZIP-compatible software. The following password search methods are supported:
brute force attack; dictionary-based attack.
Created: 08/02/2007
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EACompression ZIP component enables developers to deliver zip applications in C#, VB.NET, JScript.NET, ASP.NET or other .NET framework and .NET Compact Framework. Many advanced features are supported including file password encryption. There is a free 30-day full featured trial version.
Created: 09/06/2007
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ZipForge.NET is a fast .NET framework zip component. With this toolkit you can easily add zip archive functionality to your projects. Free for personal use. Royalty-free for commercial use. ZipForge.NET is 100% managed .NET component written in pure C#.
Key features:
Creates and handles ZIP files
100% managed native .NET code
Adds, moves, extracts, deletes, updates, tests, refreshes a group of files by a single operation
SFX archives support
Extensive help
A lot of demos (C#, VB.NET and Delphi.NET demos are included)
Royalty-free
Full source code is availaboe
Created: 15/07/2006
by Kevin GoldbergMore...
This J2ME (Java 2 Microedition) application allows mobile phones to send/receive compressed messages in a deflate format, optimized for short strings. It can achieve the ratio 1/2, i.e. two original messages are compressed in only one message. A recipient must have the similar application.
It costs $10.
Created: 28/01/2006
by Antonio SantagiulianaMore...
The Archive Component is a fast and optimized toolkit for working
with archive-files, available as a .NET-class as well as a COM-object.
The main purpose of is to simplify creating archives and reading/writing
data from/to archive files as much as possible.
Fileformats: ZIP-files as well as ARJ, GZ, JAR, TAR and Z.
A German version is also available, see it here.
Created: 01/08/2005
by Carsten NeubauerMore...
The home page for addZip, a shareware Zip library. Libraries and controls available for 16 and 32 bit versions of MS-DOS and Windows, with support for various compilers. This is a commercial product, but an evaluation version of the library is available.
Created: 20/07/2002
by Mark NelsonMore...
A shareware program that uses the look and feel of Windows Explorer to navigate Zip files.
Version 4.7 of this program is shipping as of October, 2005.
Created: 15/11/2003
by Mark NelsonMore...
Polar Zip is a Win32 component that provides all the compression and archiving features you could ever need. Use with any development environment that can accept an ActiveX control.
Polar has added a .NET version of their Zip component in May, 2003.
Created: 26/05/2003
by Mark NelsonMore...
Yet another free Zip program with the usual cast of features. Supports a pretty good variety of archives (including ace, arj, cab, rar), runs under Win32 only, etc. There are a number of localizations to national languages.
Filzip 3.0.4 is shipping in July, 2005.
Created: 15/05/2004
by Mark NelsonMore...
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, now has many features to customise appearance of self-extracting archives in the 3.0 release.
Version 3.0 is shipping as of August, 2005.
Created: 31/05/2004
by Mark NelsonMore...
This library, found on the code project, is an MFC compatible set of code that handles most operations you would want to do on Zip files. Notably, it includes support for multi-disk archives.
Created: 18/10/2000
by Mark NelsonMore...
A pure Ada decompression library. You can extract files from zip archives using this library, although you can't create them.
Release 15d shipped in 21-Aug-2004.
Created: 10/12/2002
by Mark NelsonMore...
An article Mark Nelson wrote that describes how to take advantage of the zip classes included in Java's 1.1 JDK. This includes some very simple programs that can create, view, and extract from zip files.
Created: 01/12/1999
by Mark NelsonMore...
CInfoZip by Alchemy Lab is an MFC class that makes it easy to add Zip support to your C++ programs written using Visual C++. Despite the fact that Alchemy Labs is a commercial operation, they're giving this code away for free.
Created: 30/08/2000
by Mark NelsonMore...
This includes a brief discussion of Huffman coding, then of LZ77 compression, and finally some of the coding oddities that are found in deflate.
Created: 23/08/2001
by Mark NelsonMore...
This ftp site contains the PKZIP and InfoZip appnotes in various incarnations, plus RFCs 1950, 1951, and 1952. It is referenced in the zlib docs as if it were the official location for the gzip specification. If you are attempting to understand the format of PKZIP archives you need this document Copies of RFCs 1950, 1951, and 1952 are here as will.
Created: 07/11/1999
by Mark NelsonMore...
Mark Adler has given much to us via his work on Info-ZIP, zlib, and PNG. Is he an interesting person as well? Here is the place to find out.
Created: 07/11/1999
by Mark NelsonMore...
Another Win32 archiver that can work with a zillion formats. Recent new features added to BitZipper include deflate64 support, ACE archive support, AES 128- and 256-bit encryption, and better integration with the Windows shell.
BitZipper 4.1 shipped in November, 2004.
Created: 01/03/2004
by Mark NelsonMore...
A command line & Windows Explorer integrated archiving program for manipulating zip files and some other formats. 7-zip features great compression ratios, support for quite a few other archive formats, and is free.
DataCompression.info user Gregg A. had this to say: 7-Zip is a great archiver that works with many of the popular archive formats, as well as a new one of its own. This is my favorite compression tool now because it is so universal and it's open-source.
Version 4.18 shipped in April, 2005.
Created: 10/12/2003
by Mark NelsonMore...
There are many Zip compression components in the marketplace. This web page is a summary of the most popular Zip components available and provides a side-by-side comparison of the features and pricing of each. This review focuses on components used by Microsoft developers in Visual Basic, ASP, Visual C++, and Visual FoxPro applications.
Created: 30/10/2002
by Mark NelsonMore...
The African Chief has a variety of compression programs listed here, including units for Delphi and Turbo Pascal. Techniques supported include LZSS and Zip. Most appear to include source.
Created: 02/11/1999
by Mark NelsonMore...
In this comp.compression posting, Ben Rudia-Gould opens up the compression format used by the PKWare Data Compression Library. This is the only place I have ever seen this information disclosed; PKWare has certainly not done so.
Created: 22/09/2001
by Mark NelsonMore...
DynaZIP offers just about everything you'd want to work with Zip files in a Win32 environment.
DataCompression.info 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.
Created: 16/07/2004
by Mark NelsonMore...
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.
Created: 10/07/2004
by Mark NelsonMore...
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.
Created: 04/07/2004
by Mark NelsonMore...
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.
Created: 04/07/2004
by Mark NelsonMore...
This source code shows how to add zip/unzip functionality to your programs. Claim to fame: simplicity and clean packaging.
Created: 24/06/2004
by Mark NelsonMore...
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 5.5.1.440 of ZipGenius is shipping as of June, 2004.
Created: 14/06/2004
by Mark NelsonMore...
Does everything you want, and costs a lot less than the two market leaders!
Version 3.0 is shipping as of June, 2004.
Created: 14/06/2004
by Mark NelsonMore...
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
Created: 14/06/2004
by Mark NelsonMore...
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.
Created: 06/06/2004
by Mark NelsonMore...
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.
Created: 31/05/2004
by Mark NelsonMore...
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.
Created: 31/05/2004
by Mark NelsonMore...
Zipper is a tool for inspecting the contents of a compressed archive and for extracting.
Version 0.7 is shipping as of May, 2004.
Created: 23/05/2004
by Mark NelsonMore...
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
Created: 22/05/2004
by Mark NelsonMore...
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.
Created: 16/05/2004
by Mark NelsonMore...
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
Created: 14/05/2004
by Mark NelsonMore...
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.
Created: 10/05/2004
by Mark NelsonMore...
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.
Created: 19/04/2004
by Mark NelsonMore...
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.
Created: 11/04/2004
by Mark NelsonMore...
A free archiver for Win32 that supports a really great list of formats, including the obvious Zip but some from left field as well, such as ARJ, RAR, and 7-Zip.
Reader LS said: Very nice, simple to use (even for experienced users!)
Version 3.4.1.6 is shipping as of April, 2004.
Created: 11/04/2004
by Mark NelsonMore...
Another graphical zip tool. Has some interesting capabilities, including viewing while downloading, uploading to ftp sites, splitting zip files, etc.
Created: 09/04/2004
by Mark NelsonMore...
Rubyzip is a ruby module for reading and writing zip files.
As of March, 2004, Rubyzip is shipping version 0.5.4
Created: 28/03/2004
by Mark NelsonMore...
The OutlookZIP it's an Add-On for Microsoft® Outlook. It makes easy for you to compress the files that you attach to Microsoft® Outlook e-mail messages. OutlookZIP adds three buttons to Outlook toolbar making the usage simple easy. OutlookZIP works only with Outlook 2000, Outlook XP (2002), and Outlook 2003. It does not work with Outlook Express.
Created: 20/03/2004
by Mark NelsonMore...
ZipScan performs a fast file search that looks inside Zip, CAB, RAR, JAR, and ACE archive files, including self-extracting archives. The search can also check a file's size, look for a text string, and search a file's version resource table.
Created: 07/03/2004
by Mark NelsonMore...
The home page for WinZip Computing, makers of WinZip. WinZip is a very popular Win32 Zip program. This page has links to an evaluation version of the program available for download, plus an FAQ, and other online support.
WinZip 9.0 shipped in February, 2004. Highlights include AES encryption and 64-bit Zip format support.
Created: 01/03/2004
by Mark NelsonMore...
This project is still in beta. The current release provides the ability to manipulate zip archives by adding and removing files.
Created: 01/03/2004
by Mark NelsonMore...
This commercial product will zip up entire web sites and download them to your PC. You can then view them off line, at your leisure.
Created: 11/01/2004
by Mark NelsonMore...
ZipDB is a program that allows databases to be made easily and efficiently using compressed zip files. An easy-to-use gui is the key feature allowing quick access to all files in the archive.
Created: 04/01/2004
by Mark NelsonMore...
FlyZip is a compressor designed to help you save space on your Palm O/S device, including Palm-based phones.
FlyZip XR 3.02 shipped in December, 2003.
Created: 06/12/2003
by Mark NelsonMore...
This commercial product takes care of managing your attachments. It appears to do
this transparently, so you don't even have to think about zipping up a big
attachment before sending.
Created: 05/12/2003
by Mark NelsonMore...
PentaZip has a very nice feature set, supports advanced encryption, large archives, Windows shell integration, and all the other good stuff you've come to expect. Also supports a wide variety of languages.
Release 6.0.1.190 shipped in November, 2003
Created: 26/11/2003
by Mark NelsonMore...
The software reviewer at the SlaughterHouse speculated that commercial developers of zip programs ought to just pack it in when they see how good QuickZip is. If you agree or disagree, why not post an evaluation here so we can benefit from your experience? It seems to be free, plus has support for Chinese and several European languages.
Release 3.05 is shipping as of November, 2003.
Created: 16/11/2003
by Mark NelsonMore...
Ahmed Ismaiel Zakaria has created a Win32 Zip program that supports Zip files, and is promising to soon support JAR, CAB, ARJ, RAR, ACE, and so on. Yes, there are many other programs just like it, but SmartZip appears to be free and the author is promising to release the source code. (Of course, he's violating the GPL if he doesn't offer the source code even with these early releases.) This project is posted on the venerable and esteemed CodeProject site, the author appears to be actively working on the project and communicating on the open forums.
Last updated November 6, 2003. Oh, wouldn't it be grand if the author posted release notes and a shipment history!
Created: 10/11/2003
by Mark NelsonMore...
This free Zip manager program supports a raft of archiver formats, has full shell integration, and includes support for the Zip64 extensions.
Created: 09/11/2003
by Mark NelsonMore...
Zipserver is a little HTTP server that serves up static documents from inside Zip files. Great way to put manuals or archived documents on line, don't you think?
Created: 08/11/2003
by Mark NelsonMore...
This Zip file manager seems to be making its claim to commercial success on two factors. First, it's 10 bucks cheaper than the big two, PKZip and WinZip. Second, it automatically fixes corrupt archives. (Although I'd love to see a discussion of just how well it does this.)
Created: 20/10/2003
by Mark NelsonMore...
This Win32 archiver is free if all you ever do is unzip files. Creating Zip files is going to require registration and you coughing up a few bucks.
Created: 03/10/2003
by Mark NelsonMore...
ExpressZIP features all of the powerful ZIP tools you'll ever need in an easy to use and attractive interface and comes complete with built-in Wizards to walk you through creating ZIP and EXE (self extracting) archives.
Version 4.0 shipped in September, 2003.
Created: 18/09/2003
by Mark NelsonMore...
This archiver is built specifically for support of image archiving. Supports popular formats such as JPG and BMP.
Created: 15/09/2003
by Mark NelsonMore...
jzip.org is a WinZip like program written in java. The project aims to provide the ultimate zip tool free of proprietary code and portable to virtually any modern operating system. Preconfigured binary packages are provided for Windows 9x, Windows 2000 and of course for Linux (that one should fit any Unix-like system).
Release 0.20 w/numerous bug fixes shipped in September, 2003.
Created: 04/09/2003
by Mark NelsonMore...
A library that allows you to read various types of structure files in the GNOME environment. Structure files includes MS OLE2 streams, as well as Zip files.
Created: 25/08/2003
by Mark NelsonMore...
TurboPower has given up on the retail library business, and will be placing most of their products into an open source state. Abbrevia is TurboPower's compression library. It appears that version 3.05 is in beta as of August, 2003.
Created: 18/08/2003
by Mark NelsonMore...
ZipSplitter is a Win32 program that does two things for
you. First, it zips up a single file. Second, it will split
that zip file into several pieces of a size of your
choosing. When it does this, the last chunk is an EXE
file that knows how to recombine all the files into one.
Created: 01/08/2003
by Mark NelsonMore...
This article is an addition to an earlier CodeProject posting that was designed to make your life easier when working with Zip files. The previous article had support for extraction and navigation of Zip files. This article adds support for creation of Zip files.
Created: 21/07/2003
by Mark NelsonMore...
Advertises itself as the "The Best Free Zip Utility on the Net!" Free registration is optional, enables search utility which provides some payback.
Created: 06/07/2003
by Mark NelsonMore...
My own version of PKZIP. It's quite a bit slower, and it's a bit of a memory hog... but for good reason. KZIP creates smaller .ZIP files than PKZIP with maximum compression enabled! No, I didn't cheat. You see... during compression, PKZIP gives up after it has found so many matches - this is why it is so fast, and also why KZIP can beat it. .ZIP files created with KZIP are compatible with all of the latest .ZIP software - just that if you use KZIP, your file will be a few percent smaller. Decompression is still very fast, making KZIP the perfect tool for shaving off seconds from download times.
Note: Reader Nicolas gives this product a 5-star rating, and recommends you use it with Ken's other produt, ZIPMIX.
Created: 02/07/2003
by Mark NelsonMore...
Another Ken Silverman utility. Ken has this to say about ZipMix:
Sometimes, when you run 2 different .ZIP programs on the same data (PKZIP & KZIP for example), some files get compressed better in one program, while other files get compressed better in the other. ZIPMIX will take the best files from each one and create a new output file, which is guaranteed to be equal to or smaller in size to both of the input files.
This cool program uses either Zip file or JPEG file to encrypt some of your data. I think it's free, email me if I'm wrong.
Created: 24/06/2003
by Mark NelsonMore...
Xceed Streaming Compression for .NET is an efficient and lightweight data compression class library for Microsoft .NET and ASP.NET. It can process any size byte array with ease and provides a true .NET pass-through stream object for automatically compressing or decompressing any .NET stream's data on the fly. It supports the GZip, Zlib, Deflate and Deflate64 compression formats.
Created: 22/06/2003
by Mark NelsonMore...
The folks at Softword Technology have this to say about their product: There are many unzipping software tools to unzip ZIP files, but the easiest and friendliest of them all is The Unzip Wizard! It appears that this product is aimed at providing the core functionality needed by novice users. Shareware.
Version 3.1.0 is shipping as of June, 2003.
Created: 21/06/2003
by Mark NelsonMore...
This CodeProject article gives you support for both zipping and unzipping files from archives without requiring a lib or dll. The code is absolutely free.
Update posted June 20, 2003.
Created: 21/06/2003
by Mark NelsonMore...
Xceed Zip for .NET Compact Framework is a data compression and all-purpose file manipulation class library for creating mobile apps. It provides flexible zip, gzip and streaming data compression capabilities for compact applications created with Visual Studio .NET 2003. The library includes an innovative and extensible filesystem object model that makes zip files as easy to work with as regular files or folders.
Created: 21/06/2003
by Mark NelsonMore...
Freezip, by Dariusz Stanislawek, is a completely
free Win32 application that does the usual job of zipping and
unzipping files, and includes full integration with Windows
Explorer.
Created: 06/06/2003
by Mark NelsonMore...
UFUP advertises itself as a "decompression utility that handles common Unix package formats such as bzip2, gzip, and tar."
Created: 30/05/2003
by Mark NelsonMore...
This is a somewhat unique utility that will only be useful to those of you working on Visual Studio programming projects. Running it erases all your temporary project files, then zips up all the leftovers so you can backup your work.
Created: 26/05/2003
by Mark NelsonMore...
Advanced Zip Repair(AZR) is a powerful tool to repair corrupted Zip and self-extracting(SFX) files. It can recover your data in Zip archives as much as possible, so to minimize the loss in file corruption.
Version 1.6 is shipping in May, 2003.
Created: 25/05/2003
by Mark NelsonMore...
This MSDN article describes how to use the java.utl.zip package with a C# program. Includes a sample GUI Zip application.
Created: 17/05/2003
by Mark NelsonMore...
An open source library that does one thing only: extract files in a Zip archive, as long as they are stored or deflated.
Release 10.82 was shipped in July, 2003.
Created: 12/05/2003
by Mark NelsonMore...
Larry Leonard has created this CodeProject article with the goal of making it super easy to read and write Zip files from your MFC project. There are some limitations to this project, such as a limit of one file per archive, no disk spanning, and no encryption, but he has definitely made it easy to use. Three lines of code and you're done!
Created: 26/04/2003
by Mark NelsonMore...
Marco Schmidt has assembled a nice page of links and information on the Zip archive format. A few good links, but this isn't the comprehensive guide you need to answer any question about the format.
Created: 17/04/2003
by Mark NelsonMore...
Zip Assistant is a vanilla Win32 archive program, which appears to be slanted towards the novice user who might need a bit of handholding. The web page does say that advanced users will appreciate some features as well, and the feature list does include disk spanning, SFX files, and more.
Version 4.6 is shipping as of April, 2003.
Created: 16/04/2003
by Mark NelsonMore...
This program appears to be a decompressor only - it lets you look at the contents of a Zip file, but doesn't give you a way to manipulate the contents. It offers the ability to preview files from inside the Zip file, and has a mysterious feature that I don't understand:
ZipForward™ can burn your package to an Application (.EXE) format. This means that anyone with a Windows computer can run and extract your package, just by double-clicking the icon. From then on they can use the package you gave them to send to their friends, and their friends, and so on.
ZipForward 1.1 is shipping as of April, 2003.
Created: 14/04/2003
by Mark NelsonMore...
This is an open source tool that is described as a Java based archiving tool that is ideal for housekeeping tasks such as backups, pruning and more. Part of the archiving task is the ability to create zip archives, which explains its presence here.
Version 1.0 of Jarchiver is shipping as of March, 2003.
Created: 03/04/2003
by Mark NelsonMore...
Bob Crispen has created a GUI wrapper for Gzip so that Win32 users can take advantage of this fine piece of free software. Naturally, Win-GZ is free as well.
Version 1.2 shipped in March of 2003.
Created: 22/03/2003
by Mark NelsonMore...
This product bills itself as the "Ultimate Multilingual User Friendly" compression tool. The usual Zip features plus support for six different languages. Fifteen day free trial download.
Reader Donald J. says Excellent zip utility and definitely the easiest I have ever used.
Created: 22/02/2003
by Mark NelsonMore...
BigSpeed Zip OCX is a multi-threaded, fully self-contained ActiveX control, which lets you add zipping and unzipping capabilities to any 32-bit Windows application.
Version 2.1.0.26 of this library shipped in March of 2001.
Created: 18/02/2003
by Mark NelsonMore...
mod_zipvfs is an Apache2 module, that gives the httpd server the ability to read and browse zipped archives and allows traversal of their content like a virtual filesystem. It is very useful for browsing large html-based documentation without need of decompressing.
Created: 18/02/2003
by Mark NelsonMore...
A complete Zip compression library for Win32 programmers in a 50K DLL.
Version 3.02 of this DLL shipped in May of 2002.
Created: 18/02/2003
by Mark NelsonMore...
PKWare's page for PKZip. Currently offering four flavors of PKZip for Windows, and a big mess of versions for UNIX.
Version 6.0 of PKZip appears of have shipped in January of 2003.
Created: 17/02/2003
by Mark NelsonMore...
A Q/A column in JavaWorld magazine from 12/2002. The article answers a couple of questions regarding how a Java programmer can zip up data resident in memory, as opposed to files. The second Q/A was particularly interesting as it addresses a quest to zip up data being passed through RMI in particular app.
Created: 17/02/2003
by Mark NelsonMore...
This article gives a good look at how to use the java.util.zip classes that showed up in JDK 1.1. Todd Sunsted includes java source that shows you how to easily compress files using standard library functions.
Created: 17/02/2003
by Mark NelsonMore...
This project provides an implementation of the java.util.zip classes. The code is pure java (no native code is used), and aims to be compatible with existing java.util.zip implementations.
Version 0.06 of jazzlib shipped in January of 2003. This product is still under development, but I don't have a clear roadmap, no idea when to expect a 1.0 release.
Created: 15/02/2003
by Mark NelsonMore...
DanG presents an extended yet simplified interface to querying, filtering and extracting multiple files from a zip archive.
Created: 15/12/2002
by Mark NelsonMore...
IP*Works! Zip allows developers to easily integrate compression and decompression functionality into web or desktop applications using popular file and data compression standards including Zip, Tar, Gzip and Jar standards for compression. All IP*Works! Zip components have been built from the ground up entirely in native .NET and Java code, combining exceptional speed, excellent data compression, and extreme portability across platforms.
The components feature password support, file deletion within an archive, streaming compression and decompression, and more. IP*Works! Zip is currently available as fully-managed 100% C# .NET components, or pure Java beans.
Created: 07/11/2002
by Mark NelsonMore...
A full-featured release of a Win32 Zip program. Version 3.0 was released in October, 2002. Trial version available.
Created: 30/10/2002
by Mark NelsonMore...
Sax.net Streaming Compression helps you keep your data small and fast. Use high-performance compression and data compression code, using a class library that was designed from the ground up for integration with the Microsoft .NET framework.
In addition to being able to specify whether to prefer speed over size, Sax.net Compression offers you a choice of two compression algorithms: Industry-standard Deflate (ZIP) compression, and the newer Burrows-Wheeler (BZip2) transform, which generates especially great results when compressing XML data.
Created: 30/10/2002
by Mark NelsonMore...
A Zip compressor for the C64, and by extension, the C128, VIC20, C16, and Plus/4. If you have to ask what a C64 is, don't bother!
Created: 12/10/2002
by Mark NelsonMore...
This Microsoft Security Bulletin details a bug in the code that implements compressed folders in the Windows 9X product line.
Created: 12/10/2002
by Mark NelsonMore...
Chilkat Zip is an easy-to-use, royalty-free ActiveX control that empowers your applications to create/manipulate Zip archives. It can encrypt your data with the latest 256-bit AES Encryption, includes self-extracting EXE capabilities, and provides easy access to decompressed contents of individual files stored within a Zip archive. You can easily compress directly from memory buffers or strings and add multiple files with wildcarding and recursing directories.
Created: 01/10/2002
by Mark NelsonMore...
This library adds zip compression and decompression functionality to your program, allowing you to create and modify ZIP files in a compatible way with WinZip, PKZIP and other popular archivers. Its easy and practical interface makes the library suitable for the beginners as well as for the advanced users. The library is published under the GPL - alternate licensing needs to be arranged if you wish to use this in a commercial product.
Created: 29/09/2002
by Mark NelsonMore...
#ziplib (SharpZipLib, formerly NZipLib) is a Zip, GZip, Tar and BZip2 library written entirely in C# for the .NET platform. It is implemented as an assembly (installable in the GAC), and thus can easily be incorporated into other projects (in any .NET language). The creator of #ziplib put it this way: "I've ported the zip library over to C# because I needed gzip/zip compression and I didn't want to use libzip.dll or something like this. I want all in pure C#."
Visitor Samuel L. had this to say Extremely useful and well written, well done, great that is open source.
Created: 09/09/2002
by Mark NelsonMore...
CHAOS Self-Extractor is a utility program that creates self-extracting ZIP files for Windows. CHAOS supports a form of encryption that it claims is much stronger than standard Zip encryption.
Created: 09/09/2002
by Mark NelsonMore...
ZipMagic gives you transparent access to Zip files via the technology from the ZipFolders product. Treat archive files as if they were ordinary folders. ZipMagic of course contains a number of other nice features.
Created: 20/08/2002
by Mark NelsonMore...
A search program for Win32 computers. ZipSearch knows how to look through Zip files and compressed EXEs to find search strings.
Version 1.07 shipping in December, 2002.
Created: 08/08/2002
by Mark NelsonMore...
This program lets you compress AutoCad DWG files into Zip archives for distribution.
Version 2.0 is shipping as of May, 2003.
Created: 08/08/2002
by Mark NelsonMore...
ChilkatZip Self-Extractor is a utility program that creates self-extracting ZIP files for Windows 95/98/Me/NT/2000/XP. They advertise a few interesting features, including 256-bit encryption, streaming technology, and progress indicators.
Created: 08/08/2002
by Mark NelsonMore...
Easily create sharp-looking, feature-rich Self-Extracting (.EXE) Zip files with this handy desktop application. Lets you quickly select a group of files to zip up and put into a .EXE file. Even supports being able to split the .EXEs across multiple floppy disks.
Created: 31/07/2002
by Mark NelsonMore...
A feature-rich COM/ActiveX and DLL component for adding Zip and Unzip to your Windows apps with minimum effort. Includes full documentation with many samples and examples for VB, VC++, Delphi and C++Builder to get you started quickly. Supports the latest
zip file format updates including Deflate64 compression and Zip64 headers. Also includes BZip2 compression which is excellent for compressing XML data.
Created: 31/07/2002
by Mark NelsonMore...
A true native Microsoft.NET Zip file-handling and streaming compression class library. Its true object-oriented design makes manipulating zip files as easy as manipulating regular files and folders. Written entirely in managed C#, it includes a variety of
VB.NET and C# samples and takes full advantage of the .NET runtime's capabilities.
Created: 31/07/2002
by Mark NelsonMore...
This is an optional add-on for the Xceed Zip Compression Library ActiveX/DLL that lets your applications create sharp-looking self-extracting Zip files (.EXE's) about as powerful as some install programs.
Created: 31/07/2002
by Mark NelsonMore...
Makers of high-quality, commercial-grade data compression, encryption and internet components for Windows developers.
Created: 31/07/2002
by Mark NelsonMore...
ZipRecovery purports to be able to repair your corrupted Zip files. They don't talk too much about the details on the site, but they offer a demo program, so you can get an evaluation without actually buying a copy.
Version 1.5 is shipping as of October, 2003.
Created: 02/07/2002
by Mark NelsonMore...
PifPaf zip/unzip is a small and simple drag-and-drop ZIP compressor for MacOS and MacOS X.. PifPaf Mac/Win is a small and simple drag and drop LZW compressor (DiskDoubler type, file's tree keeping) for MacOS AND Windows (.ssr extension) This is a French language site.
Created: 12/06/2002
by Mark NelsonMore...
ZipCentral is a free and easy to use zip file manager with all the utilities you need to manage your zip files. The goal of ZipCentral is to be the most robust freeware zip-package you can find today. It is a great tool for the beginner as well as the expert. Working with zip files has never been easier!
Created: 16/05/2002
by Mark NelsonMore...
A C++ open source library for accessing zip files. This is a work in development, which as of the current beta now has support for reading and writing Zip files. Distributed under the LGPL.
Created: 01/05/2002
by Mark NelsonMore...
Abale Zip is a royalty-free, robust and powerful Zip and Unzip component that costs much less than you would expect. It includes all the compression functionality you need in one easy to use ActiveX DLL that you distribute with your applications. The component works perfectly with VB, Delphi, ASP, C++Builder and Visual C++ and offers tons of sample applications to get you started. Looks like you can D/L a trial version, not clear from the web site if it's crippled in any way. The web site works hard to explain that their component costs half of what you'll pay for Xceedsoft's product.
Created: 04/04/2002
by Mark NelsonMore...
An archive manager that has some built in functionality that helps you with your backup requirements. Automatic archiving in the trusty Zip format.
Created: 04/04/2002
by Mark NelsonMore...
This unique free program searchs through all your zip files looking for specific strings in specific file types.
Created: 04/03/2002
by Mark NelsonMore...
A free 16 bit archiving program. No long file name support, so it might not be particularly appealing to the Win32 crowd.
Created: 27/02/2002
by Mark NelsonMore...
The complete compression solution for Windows developers. PKZIP-compatible file compression libraries (disk spanning, encryption etc). Memory compression library. Compatible with C/C++, Delphi and Visual Basic as well as most other development applications. Shareware.
Created: 26/02/2002
by Mark NelsonMore...
Lets you add zipping and unzipping capabilities to any application. The ZIP engine is written in fast, highly-optimized assembler code, so it can perform at speeds up to 2 times faster than other ZIP libraries. The API is simple to use and can be called from any programming language that supports DLLs. Examples are included that illustrate how to use the DLL with Delphi, Visual C++, Visual Basic, and Visual FoxPro. Shareware
Created: 26/02/2002
by Mark NelsonMore...
This archive contains the C language source code for the 2, DLLs in the Delphi Zip package: ZIPDLL.DLL and UNZDLL.DLL. This archive includes makefiles for Microsoft VC++ v4.0. 100% Freeware. Based largely on the InfoZip project.
Created: 26/02/2002
by Mark NelsonMore...
Contains VCLs, examples, and DLLs for Delphi v2. Gives your programs full support for PKZIP v2.04g compatible file compression/expansion. 100% Freeware. Based largely on the InfoZip project.
Created: 25/02/2002
by Mark NelsonMore...
A paper describing a way to brute-force ones way through PKZip's encryption - requires a few hundred bytes of known plaintext.
Created: 03/02/2002
by Mark NelsonMore...
Al Williams wrote an excellent article on using the Info-Zip DLLs to manipulate Zip files. There are lots of commercial libraries that let you access Zip files, but your choices in free software are few and far between. So if you need a free solution, Al's article is a must-read. Many thanks to Al for getting this back on line after Visual Developer's web site disappeared.
Created: 04/01/2002
by Mark NelsonMore...
A Zip compatible library with a very impressive set of claims. Works with dozens of programming languages, offers full support for PKZip archives from 1.10 on, and more. Free evaluation version available.
Reader Carl P. says This is a must have tool.
Created: 02/01/2002
by Mark NelsonMore...
This source code appears to be Samuel Smith's original Unzip code. This eventually gave birth to the Info-ZIP project and its UnZip program. Sam was the pioneer, and I believe he did most or all of it on his own.
Created: 24/12/2001
by Mark NelsonMore...
ZFilter is the ZIP indexing filter for SharePoint, Internet Information Server, Site Server and Microsoft Exchange server. ZFilter is a library that handles .zip archives and returns indexable text and value properties in a similar way to the MS Office filter and the PDF filter supplied by Adobe. The library handles all zip archives created with WinZip, PKWare and DynaZip, indeed any archive created using the compression format based on PKWare.
Satisfied DataCompression.info user Jim R. had this to say:I've been searching high and low for exactly this thing for years, and now I've found it, and it works.
Created: 08/12/2001
by Mark NelsonMore...
This product creates Zip files with long filenames under MS-DOS. It supports FAT32 and NTFS, and is designed to give you an easy way to back up your data when your Win32 machines decides not to boot. It's Free!
Created: 08/12/2001
by Mark NelsonMore...
The deflate technical specification in HTML, by L. Peter Deutsch. This document is the basis for RFC 1951. There are many links to this document stored in various places, but this database will only have links to the versions at www.cdrom.com and the IETF pages.
Created: 23/08/2001
by Mark NelsonMore...
Source to a zip decompressor that runs on the Commodore 64! Better yet, this decompressor has source for more than the typical deflate method - it includes the old-school PKWare algorithms: Store, Reduce, Shrink, Implode.
Created: 16/08/2001
by Mark NelsonMore...
ZipIt is a Macintosh program that zips and unzips archives in a format fully compatible with PKZip for the IBM and zip implementations on other systems.
Created: 25/07/2001
by Mark NelsonMore...
SmartZip is a MacOS application designed to be the simplest and most efficient way to manage ZIP files. You can automatically compress files (or entire folders) by dragging them onto SmartZip and in the same way you can easily expand ZIP files.
Created: 25/07/2001
by Mark NelsonMore...
Free zip program - zip and unzip utility for windows by Ken Ward. This free program can be downloaded and freely used and distributed.
Created: 25/07/2001
by Mark NelsonMore...
With ZipALot you can extract (unace, unrar and unzip) multiple files at once! ZipALot takes all the archives from one directory and extracts them to another one. ZipALot can currently handle ZIP, RAR and ACE (V.2) archives.
Created: 25/07/2001
by Mark NelsonMore...
This issue of the Data Compression Newsletter from Dr. Dobb's Journal says farewell to Phil Katz, creator of PKZip.
Created: 05/07/2001
by Mark NelsonMore...
Another nice piece of source code from the Code Project. This is an ATL-based control for reading, writing, and manipulating Zip files.
Created: 25/04/2001
by Mark NelsonMore...
This article from the archives of The CodeProject describes how to use the free library to perform in-memory compression and decompression.
Created: 27/11/2000
by Mark NelsonMore...
Issue #11 of the DDJ Compression Newsletter contains some sample code that uses the Zip library from The CodeProject to create a little unzip program. A very simple program that uses a free library to get a lot done.
Created: 17/11/2000
by Mark NelsonMore...
A free program to create self extracting archives from Zip files. An open source program that harkens back to shareware days by asking for donations, old-school style.
Created: 15/09/2000
by Mark NelsonMore...
This program by Synaptek Software is yet another zip program. Let me know if you find any distinguishing features of this release.
Created: 09/06/2000
by Mark NelsonMore...
ASCENT SOLUTIONS Inc. PKZIP data compression software for MVS (mainframe), Windows (Netzip), VM, VSA, AS/400, UNIX, OS/2, DOS, VMS. All products are 100% cross-platform compatible.
Created: 16/05/2000
by Mark NelsonMore...
EnZip is a freeware Windows compression program. Release 3.0 seems to have shipped in June of 2000, no activity since then.
Created: 09/05/2000
by Mark NelsonMore...
A set of components and DLLs that allow you to manipulate zip files from within your Delphi or C++ Builder programs. It's all free. Don't know ifyou can use the DLLs with any other languages.
Created: 23/04/2000
by Mark NelsonMore...
A short article with some code that illustrates how one would unzip archives using built-in java classes. Registration required to view the page.
Created: 12/04/2000
by Mark NelsonMore...
Another product from Aladdin, makers of the world-famouse Stuffit program for the Mac. DropStuff comes in versions for the Mac and Windows, and will store archives in either Zip or Sit formats.
Created: 04/04/2000
by Mark NelsonMore...
A commercial program that supports both the Stuffit and Zip formats. DropZip is available for both Mac and Windows platforms.
Created: 09/03/2000
by Mark NelsonMore...
fastJar is a C version of Sun's jar utility. Being written in C instead of Java gives this program a bit of a boost; albeit at the expense of purity.
Created: 02/03/2000
by Mark NelsonMore...
An article from the ACM Crossroads student publication. This article shows how to use some of the built-in classes in the JDK to create and access compressed files and streams.
Created: 27/02/2000
by Mark NelsonMore...
The family of Netzip archiving programs seem to have a good set of features and have received good reviews when compared to WinZip and PKZip for Windows. NetZip 7.5 adds some flashy new features, including skins!
Created: 11/02/2000
by Mark NelsonMore...
Colin Mummery has created this product which has zip/unzip capability, plus the ability to create self-extracting JAR files. It's free.
Created: 10/01/2000
by Mark NelsonMore...
During the development of PKZIP v. 2.0 for MS-DOS, PKWARE has
discovered hardware faults in newer 80386 & 80486 computers.
These faults can cause anomalies in the operation of PKWARE
software as well as other software.
Created: 04/11/1999
by Mark NelsonMore...
Greg Roelofs' home page. Greg has invested many years of his life towards good works such as PNG, zlib, and Info-ZIP. You might know him as Cave Newt.
Created: 21/09/1999
by Mark NelsonMore...
UnZip is an extraction utility for archives compressed in .zip format (also
called "zipfiles"). Although highly compatible both with PKWARE's PKZIP
and PKUNZIP utilities for MS-DOS and with Info-ZIP's own Zip program, our
primary objectives have been portability and non-MSDOS functionality.
Created: 18/02/1999
by Mark NelsonMore...
Windows 95 programs Zip and Unzip that use zlib for the compression engine. These two programs don't support encryption, multivolume archives, or old PKZip 1.x formats. Don't confuse thes with the Info-ZIP products, this is something else entirely.
Created: 21/12/1998
by Mark NelsonMore...
This file is based on the PKWare APPNOTE.TXT file dated 15 February 1996. This is what is normally used as the original documentation specifying the Zip file format. This file is from the documentation site for the InfoZip project. InfoZip is the source for the popular cross-platform Zip and UnZip programs.
Created: 07/12/1998
by Mark NelsonMore...
Welcome to PKZIP 2.0. This release continues the high performance tradition of previous versions of PKZIP, with a host of new features. In addition to an improved reference section, this manual contains a step-by-step tutorial.By following the Installation, Tutorial and Advanced Features sections in order you will learn how to use PKZIP to your best advantage. Use the Command Reference sections in your day-to-day use of PKZIP. Convenient indices to these sections are printed on the inside of the front and back
Created: 01/01/1970
by Mark NelsonMore...
Zip 2.2 is a compression and file packaging utility. It is compatible with
PKZIP 2.04g (Phil Katz ZIP) for MSDOS systems. There is a companion to zip
called unzip (of course) which you should be able to find the same place
you got zip. See the file 'WHERE' for details on ftp sites and mail
servers.
Created: 01/01/1970
by Mark NelsonMore...
7-ZIP Archiver is a freeware program for manipulating with ZIP file archives. 7-ZIP is a console 32-bit executable for Windows 95, 98 and NT. Main features: ZIP format compatibility
Compression ratio 2-8 % better than WinZIP/ PKZip
FAR Support
Created: 01/01/1970
by Mark NelsonMore...
PKWare issued a slightly self-serving press release trumpeting the fact that they've updated their App Note that describes the Zip format. While it's true that they have updated the document, I can't find any description of the two new compression formats that are added to their version of the Zip standard. They're using a new version of deflate called Deflate64, and have added support for the PKWare Data Compression Library. Neither of the two formats is documented.
Created: 01/01/1970
by Mark NelsonMore...
On the network, Mark has contributed free software as a coauthor of Info-ZIP's zip and unzip, GNU's gzip, the zlib compression library, and as a participant in the PNG image format development effort.
Created: 01/01/1970
by Mark NelsonMore...
