jZip is an alternative compression utility for Windows. It can handle gzip, tar, and your usual compressions. It also extracts from RAR files and ISO images. Based on 7-Zip.
Basic idea of jZip is that while based on 7-Zip, it’s trying to bring a more usable interface similar to WinZip to the masses. So when you offer something like this for free for any purpose, then you get a WinZip like thing that anyone can use.
And that’s pretty dang… zippily great.