Download 7-Zip 9.20 (2010-11-18) for Windows:
works in Windows 7 / Vista / XP / 2008 / 2003 / 2000 / NT / ME / 98
is open source
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.
To Download this free Zip file utility
(The download and installation process is very quick and should not take much more than a minute or so on an average broadband connection)
1. Click on the padlock
2. When the new window opens, just click on the Download button for the 32-bit version and follow the instructions to install it on your PC, just the same as any other downloadable file
3. Once the download and installation is finished, you are ready to go - just double click on any zipped file and the zip file will open, allowing you to see the contents and open all the files.