Unlike the compression built into IIS 4 and 5 (Windows NT/2000), IIS 6.0 offers out-of-the-box compression embedded into the core Web server code itself, allowing for extremely fast HTTP compression with minimal resource penalties.

Version 2.0 is shipping as of May, 2004.

http://www.port80software.com/products/zipenable/

Compressing Web content can produce a much faster site for users. Here’s how to set it up and measure your success.l

http://www.linuxjournal.com/article.php?sid=6802&mode=thread&order=1&thold=-1

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.

http://pwp.netcabo.pt/e2e/

These folks make NetCelera, a WAN compression product.

http://www.netcelera.com/

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.

http://www.spidersoft.com/webzip/

This is a compiler for web pages, that uses various techniques to squeeze the fat out of your web pages. This includes things a simple as white-space reduction and as complex as JavaScript compression.

Ron M. had this to say: This is a great program, very highly recommended for Web developers. It lets you write your code full of comments and extra space for readability, and then strips it all out automatically for the live site. My pages have been noticeably faster & very hard to decipher the code on the other end. It’s been reliable and easy to get used to.

http://www.w3compiler.com/

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.

http://www.mapilab.com/outlook/attachments_compressor/

A server and download accelerator for your Microsoft web server. The site says that TurboIIS is an advanced component for Microsoft Internet Information Servers, designed specifically with the aim of lowering band consumption, accelerating download times of static and dynamic content, and preventing redundant access to database resources. 30 day trial download available!

Reader Alfred S. had this to say: Very impressive performance compared to other similar products.

Version 4.0 is shipping as of December, 2003.

http://www.turboiis.com/

This is a web proxy that compresses pages using standard gzip compression, making them a lot smaller for serving up over low-speed connections. Not only does it convert text to gzip encoding, it also converts images to low-quality JPEGs for maximum space savings.

Version 1.3b is shipping as of November, 2003.

http://ziproxy.sourceforge.net/

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?

http://zipserver.sourceforge.net/en/index.html

The project to maintain a version of Mozilla that supports MNG format animated graphics.

http://mngzilla.sourceforge.net/

This program is designed to optimize your HTML source files by removing unnecessary characters, duplicated tags, and so on. Yes, this counts as Data Compression! Note that this link points to the Windows version of the program, but there are also two different Mac versions which you can easily find.

Version 7.82 was shipping in october of 2003.

http://www.tonbrand.nl/optimizer_win.htm

GNUNetPress - Network compression client/server software. Compresses data over slow networks to save on the cost of bandwidth. Server is developed for Unix platforms, The client will run on Linux or Windows based PCs.

http://sourceforge.net/projects/gnunetpress/

Brian Livingston’s short article on HTTP compression provides some pointers detailing how to configure your server to serve compressed content.

http://itmanagement.earthweb.com/columns/executive_tech/article.php/3068161

Talleo advertises themselves as an international telecommunications consulting firm that provides Network Engineering, WAN optimization, and data compression. They are a reseller of Peribit’s products.

http://www.talleo.com/

Mod ZipRead is an Apache 2 module to browser Zip Archives. It uses zziplib.

http://modzipread.sourceforge.net/

This nifty program searches through a normal or compressed mailbox looking for strings. Supports Gzip, Bzip2, and tzip formats.

http://grepmail.sourceforge.net/

A CodeProject article which includes working code. Compression here consists of removal of comments, extra line feeds, white space, etc.

http://codeproject.com/useritems/JSCompress.asp

Another compressor for HTML or Javascript files. This looks to be a Javascript implementation. Looks free.

http://www.dithered.com/experiments/compression/

This site is dedicated to discussion and explanation of HTTP compression with the Apache web server. Looks to me like the first place to go for information.

http://www.webcompression.org/

This project aims to compress the graph created by spidering the web. They claim 3.8 bits per link, which seems pretty incredible to me.

http://webgraph.dsi.unimi.it/

Compreso implements compressed sockets using an LZH algorithm, as implemented by Rolando Herrero. It does this cooperatively with the Win32 socket library, so you can only run this code under Windows. Freeware.

http://www.compreso.com.ar/compreso.htm

A quick tutorial on how and why to use HTTP compression when delivering your web pages.

http://members.xoom.virgilio.it/asafras/http_compression.htm

Gzip encoding is a great way to serve up your web pages, because all modern browsers can render this format. If you’re creating pages with PHP4, it turns out to be really easy to compress your pages this way and get a bit of speedup.

http://www.desilva.biz/php/zlib.html?s=f673e090fe49618fa07ba2e8fc95d971

This system uses data compression and other optimization techniques to speed up your dialup Internet connection. This sytem works with any ISP or provider.

http://tiscomputers.com/turbo.htm

This product compresses your web pages using the gzip format, which is readable by virtually every modern browser. Compressing the pages this way can do a lot to improve your page loading times.

Version 2.0 is shipping in April, 2003.

http://www.atompark.com/products/html2zip.htm

SlipStream Data, using our patented proprietary data compression algorithm, provides Service Providers and Corporations with solutions that reduce bandwidth and increase the speed of Internet access using dial-up and wireless connections.

Version 3.0 of SlipStream is shipping in May, 2003.

http://www.slipstreamdata.com/

HTMLCompact is a commercial program that squeezes your HTML pages, giving you faster downloads and increased user retention. It appears that this is done using some sort of compression that is executed in JavaScript.

Version 2.0 of this product is shipping as of August, 2003.

http://www.antssoft.com/htmlcompact/index.htm

Expand makes a series of Network Accelerators. These are black boxes that perform lossless compression on packets being shipped across our WAN. Lots of competition in this area, so companies like Expand depend on innovative and proprietary techniques to give them an edge.

http://www.expand.com/

httpZip uses standard algorithms to compress web pages streaming out of your IIS server. This commercial software adds support, installation programs, and administration to provide you with something a cut above some of the free alternatives.

http://www.port80software.com/products/httpzip