7-Zip is open source software. You can use 7-Zip on any computer, including a computer in a commercial organization. You don’t need to register or pay for 7-Zip.
The main features of 7-Zip
* High compression ratio in 7z format with LZMA and LZMA2 compression
* Supported formats:
o Packing / unpacking: 7z, XZ, BZIP2, GZIP, TAR, ZIP and WIM
o Unpacking only: ARJ, CAB, CHM, CPIO, CramFS, DEB, DMG, FAT, HFS, ISO, LZH, LZMA, MBR, MSI, NSIS, NTFS, RAR, RPM, SquashFS, UDF, VHD, WIM, XAR and Z.
* For ZIP and GZIP formats, 7-Zip provides a compression ratio that is 2-10 % better than the ratio provided by PKZip and WinZip
* Strong AES-256 encryption in 7z and ZIP formats
* Self-extracting capability for 7z format
* Integration with Windows Shell
* Powerful File Manager
* Powerful command line version
* Plugin for FAR Manager
* Localizations for 79 languages
7-Zip works in Windows 7 / Vista / XP / 2008 / 2003 / 2000 / NT / ME / 98. There is a port of the command line version to Linux/Unix.
DOWNLOAD