Below is a wonderful little zip utility that I have been using at home and at work. It’s called 7 Zip by 7-zip.org. It’s open source - FREE!

7 zip

The main feature that I like is the fact that it shows up when I right clicked on a zip file, it allows me to unzip to a folder or in the current folder location. And it can also open the archive inside a GUI.

It can handle reading of a lot of different archive formats like ZIP, RAR, ISO, and ARJ.

Listed below are some of the main features:

  • High compression ratio in new 7z format with LZMA compression
  • Supported formats:
    • Packing / unpacking: 7z, ZIP, GZIP, BZIP2 and TAR
    • Unpacking only: RAR, CAB, ISO, ARJ, LZH, CHM, MSI, WIM, Z, CPIO, RPM, DEB and NSIS
  • 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 69 languages