The program supports 7z, XZ, BZIP2, GZIP, TAR, ZIP, WIM, ARJ, CAB, CHM, CPIO, CramFS, DEB, DMG, FAT, HFS, ISO, LZH, LZMA, MBR, MSI, NSIS, NTFS, RAR, RPM, SquashFS, UDF, VHD, WIM, XAR, Z. Most of the source code is under the GNU LGPL license. The unRAR code is under a mixed license: GNU LGPL + unRAR restrictions. Check license information here: 7-Zip license . 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 are: High compression ratio in new 7z format with LZMA compression Compression ratio for ZIP and GZIP formats: 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
Original article here: http://www.neowin.net/news/7-zip-934-alpha
Unix tip: 7-Zip to the rescue | ITworld
You can pack and unpack 7z, zip, gzip, bzip2 and tar files. You can unpack (i.e., unpack only) arj, cab, chm, cpio, deb, dmg, hfs, iso, lzh, lzma, msi, nsis, rar, rpm, udf, wim, xar and z files. What I needed was, of course, to download the iso.zip files from Sun's web site, unzip each of them (using 7-zip or WinZIP) and then find and extract the particular package that I needed using 7-zip. No CD burning needed. I found out that I could unzip and extract from the iso file with one running of 7-Zip. Here's how it worked: With 7-Zip installed on my laptop, I right clicked on the first of the Solaris iso.zip files. I then: selected 7-Zip -> Open Archive to open the iso.tar file double-clicked on the iso file opened the Solaris_10 folder opened the Product folder and looked through the package folders (e.g., SUNWfbc, SUNWfchba and so on) until I found the one I needed. Now that's a handy tool! For zip and gzip files, 7-Zip's compression ration is said to be 2-10% better than what is official site provided by PKZip and WinZip. It also offers AES-256 encryption for 7z and ZIP formats should you need it.
Original article here: http://www.itworld.com/personal-tech/59945/7-zip-rescue