7-Zip Portable

7-Zip is a file archiver (compression) utility for Windows with a great array of features including: high compression ratio in new 7z format with LZMA compression; wide array of supported formats including 7z, ZIP, GZIP, BZIP2 and TAR; unpack support for RAR, CAB, ISO, ARJ, LZH, CHM, Z, CPIO, RPM, DEB & NSIS; better compression than many competing ZIP utilities; self-extracting capability for 7z format; powerful File Manager; support for 63 languages; and more.