This software can extract open, test and extract over 150 extensions: ACE, ARJ, CAB, DMG, ISO, LHA, RAR, R01, UDF, ZIPX files and more... It can also create and convert 7Z, ARC, BZ2, GZ, *PAQ, PEA, sfx, TAR, UPX, WIM, XZ, and ZIP files.
It is fast and reliable. I've been using it since I built my new PC as a free alternative to paying for winRAR (which is a very good program, btw). And, to my knowledge, it has no other software bundled in the package. Give it a try...
http://peazip.sourceforge.net/
Been using 7-Zip for some years now, it's also free and works great... this one looks good as well, so I might give it a try just for the fun of it.
I've used 7-zip in the past but gave it up for winrar cause at the time 7z didn't do rar's. I started to give it another shot but peazip seemed to be rated better so I tried that first and stuck with it. I may still give 7z another try.