PeaZip for 64 bitBy Giorgio Tani : Free
PeaZip 64 bit is a free, open source file and archive manager, available as portable and installable software for 64 bit Windows systems. Full support: 7Z, 7Z-sfx, ARC/WRC, BZ2/TBZ2, GZ/TGZ, PAQ/LPAQ/ZPAQ, PEA, QUAD/BALZ, split, TAR, ...