Click on the 7-ZipPortable_4.65_Rev_2.paf file and it will self install.
Please note : This file is meant for portable purpose, you can put it on your memory stick and make it work on any pc.
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.
7-Zip is a file archiver utility for Windows with a great array of features including:
High compression ratio in new 7z format with LZMA compression
7-Zip provides compression ratio that is 2-10 % better than PKZip and WinZip
Self-extracting capability for 7z format
Powerful File Manager
Localizations for 63 languages
English, Spanish, German, French, Catalan, Chinese Simp, Chinese Trad, Euskera, Gallego, Italian, Portuguese BR, Russian, Turkish
7-Zip Portable supports the following formats:
Compress: 7z, Tar, ZIP
Decompress: RAR, CAB, ISO, ARJ, LZH, CHM, Z, CPIO, RPM, DEB, NSIS
OS requirements for 7-Zip Portable: