It supports several compression formats, such as TAR, gzip, UUencode, XXencode, BinHex, and MIME. ARJ, LZH, and ARC.
It also allows you manage your files with your own favorite folder.
A very good feature is that it allows its use with an antivirus without having to decompress all the files for scanning them.
You can also integrate winzip in the contextual menus, so you will only have to click right button on any file to compress/decompress it, what is really interesting and saves a lot of time.
It compresses and decompresses files in a few seconds with a highly remarkable accuracy.