The WinPack Deluxe client offers support for an extremely impressive number of compression types. BinHex, GnuZip (GZ), Tape ARchive (TAR), MIME, UUencode, Unix Compress, Freeze, SIT (StuffIT), Quake PAK, RAR, Lharc, Zoo, ARJ, Zip/Unzip compression/decompression modes, and much, much more are all supported by WinPack. You can even use WinPack Deluxe to create self-extracting zip files (with optional encryption support as well).
