Data Compression Software

A massively spiffy yet delicately unobtrusive compression library.

A compression tool under GPL. Zzip compression algorithm is mainly based on the Burrows-Wheeler Transform method developped by Mike Burrows and David Wheeler.

Zipsearch is shareware to search compressed zip archives for files inside archives. The program finds text strings within the files for viewing and changes.

Compression for Lotus Notes, that automatically compresses attached files into ZIP files or self-extracting files. Features full integration with the Lotus Notes email client software.

Takes all the ZIP archives from one directory and extracts them to another one, allows you to handle more than one ZIP archive at once. Free open-source software for Win32.

Command-line and Windows shell utility for manipulating ZIP archives. Supported formats: ZIP, CAB, RAR, GZIP and TAR.

Delivers cross-platform data compression for data transfer, archiving, and retrieval.Part of the CoSORT family of sort and data manipulation solutions.

Makers of Zip and Unzip data compression controls for Windows developers that use ActiveX, OCX, VBX and DLLs.

Relative new though already used on many sites. When compared to WinZip the most important advantage of WinAce is better compression.