WinShrink is a completely free compression utility that supports all of the major compression formats including...
ZIP,RAR,7z,ARJ,ACE,ARC,CAB,BH,ZOO,LHA,TAR,JAR
WinShrink has many great features including the ability to:
Encrypt your compressions using a variety of encryption methods
Creat automated jobs that backup and compress your desktop files, my document files, email, and any other custom job
Schedule your jobs and back up the compressed files to a remote FTP location
Create self-extracting compression files
Convert from one compression format (such as .zip) to another (such as .jar)