7-Zip Portable is the popular 7-Zip packaged as a portable app

7-Zip Portable is the popular 7-Zip packaged as a portable app, so you can take your file archiver with you and work with your compressed 7z, ZIP, GZIP, BZIP2, TAR, RAR files and more on the go. You can place it on your USB flash drive, iPod, portable hard drive or a CD and use it on any computer, without leaving any personal information behind. It’s available and free in downloads. Enjoy!  This software works better than Winzip and fits & works on a flash drive or your desktop.