I believe we very familiar with 7-Zip, you can compressed 7z, ZIP, GZIP, BZIP2, TAR, RAR files and more on the go. This is portable version from this freeware, 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.

Features:

* High compression ratio in new 7z format with LZMA compression
* Supported formats:
o Packing / unpacking: 7z, ZIP, GZIP, BZIP2 and TAR
o Unpacking only: RAR, CAB, ISO, ARJ, LZH, CHM, Z, CPIO, RPM, DEB and NSIS
* For ZIP and GZIP formats 7-Zip provides compression ratio that is 2-10 % better than ratio provided by PKZip and WinZip
* Self-extracting capability for 7z format
* Powerful File Manager
* Localizations for 63 languages

Welcome back!