Copied from 7-Zip Homepage:
License
7-Zip is open source software. Most of the source code is under the GNU LGPL license. The unRAR code is under a mixed license: GNU LGPL + unRAR restrictions.
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 new 7z format with LZMA compression
Supported formats:
Packing / unpacking: 7z, ZIP, GZIP, BZIP2 and TAR
Unpacking only: ARJ, CAB, CHM, CPIO, DEB, DMG, HFS, ISO, LZH, LZMA, MSI, NSIS, RAR, RPM, UDF, 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 74 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.
On 7-Zip's Source Forge Page you can find a forum, bug reports, and feature request systems.
Compression ratio
Compression ratio results are very dependent upon the data used for the tests. 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 most of other zip compatible programs.
Changelog:
9.13 beta 2010-04-15
-------------------------
- 7-Zip now stores NTFS file timestamps to ZIP archives.
- New additional "Open archive >" item in context menu allows to select
archive type for some files.
- Some bugs were fixed.
- New localization: Uyghur.
9.12 beta 2010-03-24
-------------------------
- ZIP / PPMd compression ratio was improved in Maximum and Ultra modes.
- The BUG in 7-Zip 9.* beta was fixed: LZMA2 codec didn't work,
if more than 10 threads were used (or more than 20 threads in some modes).
9.11 beta 2010-03-15
-------------------------
- 7-Zip now supports PPMd compression in ZIP archives.
- Speed optimizations in PPMd codec.
- The support for archives in installers was improved.
- Some bugs were fixed.
- New localization: Kazakh.
9.10 beta 2009-12-22
-------------------------
- The BUG in 7-Zip 9.09 beta was fixed:
7-Zip created incorrect ZIP archives, if ZipCrypto encryption was used.
9.09 beta 2009-12-12
-------------------------
- 7-Zip now can unpack Apple Partition Map (APM) disk images.
- Speed optimizations in AES code for Intel's 32nm CPUs.
- Speed optimizations in CRC calculation code for Intel's Atom CPUs.
- Some bugs were fixed.
Don't use this beta version for important data.
Call "Test" command after each compressing operation.
ED2K Link:
ed2k://|file|7z913-x64.msi|1327616|DCAAB93C0F1CD578DF68EA02FBD66613|h=AGFHZOG5Z2C3IX622A2NWWM6OB72JZ6Y|/
Comments from the uploader (olofolleola4):
Here is some links if you cannot download it through this torrent:
http://uploadbox.com/files/95b87f40ff/
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http://rapidshare.com/files/376339263/7z913-x64.msi