It supports drag-and-drop. The archive file on disk remains unmodified, and is not actually decompressed. It accepts TAR, ZIP, GZIP and UNIX compressed file types.
Create an encrypted disk with software that comes on your Mac view it
It's quick and easy to extract RAR files using WinRAR view it
Self extraction view it
Using TuneUp Utilities 2009 to clean up your drives view it