Compress and extract files of multiple formats. But then you can launch the unzip software from Windows systems where 7-Zip hasnt been installed. BreeZip is a free tool to 'unarchive' many different kinds of archive files. A 7-ZipPortable directory will be created there and all the necessary files installed. Select the location you wish to install to and click OK. Actually, you have to install 7-Zip Portable once on your USB flash drive. To install 7-Zip Portable, just download the portable package at the top of the 7-Zip Portable page and then double-click it.
7-Zip is an open-source, free file compression and decompressio. 7-Zip gives you multiple methods to unpack and pack files. High compression ratio in 7z format with LZMA and LZMA2 compression. We recently looked at 7-Zip Portable, a fully portable version of the freeware file zipper. 7-Zip latest version: Compressing files is now easier. 7-Zip is a free tool that lets you conveniently unzip and zip files together.The program can be used from a command-line interface, graphical user interface, or with a window-based shell integration. 7-Zip uses its own 7z archive format, but can read and write several other archive formats. 7-Zip is an open-source file archiver, an application used primarily to compress files.