7-Zip is a high compression software that can compress or decompress your .zip, .rar, .7z, .gzip, .bzip2, .tar and can unpack only: iso, rar, arh, cab, lzh, msi, chm, wim, z, rpm, cpio, nsis and deb files. The surce code is under GNU LGPL license and is also protected by GNU association. This version of 7-Zip works on all Windows versions from Windows 98 up to the latest released Windows version Vista.

Some of 7Zip features and what 7-Zip Freeware can do while being used:

- 7-Zip offers a compression of 2-10 % better than the the one provided by PKZip or WinZip. This only applies on ZIP and GZIP format extensions.
- Auto-extracting and Self-extracting capability for the 7z format.
- Well constructed integration with Windows Shell.
- A strong and powerful Files Manager.
- Well formed and a powerfull command line version.
- Strong AES-256 encryption in 7z and ZIP formats
- FAR Manager easy plugin available.
- Contains a large 69 languages Pack.
Download 7-Zip 4.61 beta (2008-11-23) for Windows:
Download | Mirror | Mirror #2

Download 7-Zip 4.57 Stable (2007-12-06) for Windows:
Download