CleanMyFolder portable

First I want to thank the people behind this project. This really does breath new life into computing. As a matter of fact, I think this project is a bright example of something "new" in computing. If only a few more people can learn about it and use it.

I've been trying to find an app that will look for a particular file extention in a folder and sub folders and delete it. So for example, I will ask it to find .mp3 files and delete them.

I found CleanMyFolder, which I think works, but can't find a way to make it portable. It's here: http://cleanmyfolder.sourceforge.net/

Thanks a lot if you know of such an app that's portable.