If you want a free zip archive program then check out IZArc. IZArc is a free archive utility that supports a whole list of archive formats. I will list these formats at the bottom. IZArc is a fast archiving utility and supports archive encryption AES 128, 192, and 256 bit encoding.
The user interface is very similar to that of WinZip and if this is your first archiving utility it is still easy to navigate through. IZArc is supported by Windows Vista now so if you have upgraded to Vista then your able to use the free zip utility.
The following formats are supported by IZArc: 7-ZIP, A, ACE, ARC, ARJ, B64, BH, BIN, BZ2, BZA, C2D, CAB, CDI, CPIO, DEB, ENC, GCA, GZ, GZA, HA, IMG, ISO, JAR, LHA, LIB, LZH, MDF, MBF, MIM, NRG, PAK, PDI, PK3, RAR, RPM, TAR, TAZ, TBZ, TGZ, TZ, UUE, WAR, XXE, YZ1, Z, ZIP, ZOO.
