WinRAR is a 32-bit Windows version of RAR Archiver, the powerful archiver and archive manager. RAR files can usually compress content 8 to 15 percent more than ZIP or ARJ files. WinRAR's main features include strong general and multimedia compression, the ability to process non-RAR archive formats, long filename support, programmable self-extracting archives (SFX), damaged-archive repair, authenticity verification, embedded file comments, and encryption. Unicode is supported in archive file names, allowing non-English file names to be handled painlessly.
You can manipulate the parameters of many archives at once, and view a volume sequence as a single archive. It also features extraction-only support for BZIP2, JAR (Java ARchive), and ACE 2.0 formats. You can use full file paths in the exclude lists. You can unpack archive contents to the current folder, and there is support for ISO9660 file formats, SFX modules, and much more.