Gallbladder

WinRar is an another popular archiving utility to compress and unpack RAR, ZIP, 7z, CAB, ARJ, ACE, TAR, JAR, GZ, ISO, GZ and many other common formats.
It is slightly slower in compressing files than the other lightweight products but its compressibility is almost the best among all of them. An other interesting feature about WinRar is that it also has an amazing security feature of folder or file locking, which can protect your file from opening without entering the password. WinRar can set up multiple self-extracting Zip files, which other similar products dont support.