IZArc

IZArc 3.7 is an excellent and complete compression program that you can compare with Winzip. The advantage of IZArc is that it's totally free to use. This software support the following extensions:

7-ZIP, A, ACE, ARC, ARJ, B64, BH, BIN, BZ2, BZA, C2D, CDI, CAB, CPIO, DEB, ENC, GCA, GZ, GZA, HA, IMG, ISO, JAR, LHA, LIB, LZH, MBF, MDF, MIM, NRG, PAK, PDI, PK3, RAR, RPM, TAR, TAZ, TBZ, TGZ, TZ, UUE, WAR, XXE, YZ1, Z, ZIP, ZOO

IZArc integrates in the Windows Shel, therefor you can use your right-mouse button for creating or extracting an archive. Futhermore IZArc has an user friendly interface and it offers the possebility for encryption, reparation and testing archives.

If you are looking for a fully functional free compression program then IZArc is the program for you!