7-Zip is free software distributed under the GNU LGPL.
The main features of 7-Zip:
* High compression ratio in new 7z format with LZMA compression
* 7-Zip is free software distributed under the GNU LGPL
* Supported formats: 7z, ZIP, CAB, RAR, ARJ, GZIP, BZIP2, Z, TAR, CPIO, RPM and DEB
* For ZIP and GZIP formats 7-Zip provides compression ratio that is 2-10 % better than ratio provided by PKZip and WinZip
* Self-extracting capability for 7z format
* Integration with Windows Shell
* Powerful File Manager
* Powerful command line version
* Plugin for FAR Manager
* Localizations for 50 languages
Usually 7-Zip compresses to 7z format 30-70% better than to zip format. And 7-Zip compresses to zip format 2-10% better than other zip compatible programs.
7-Zip works in Windows 98/ME/NT/2000/XP. Command line version of 7-Zip can be used in Linux via Wine program.