Looking for windows testers for LooperDooper!

I build free software for kids with special educational needs and disabilities. I have spent 9 month building a program called LooperDooper, basically a 4 channel overdubber that can be triggered almost entirely with switches (these are used in special schools a lot), key presses or mouse clicks.

I don't really use windows and so only have the one machine to test it on, my dual boot mac. I am particularly keen to see how people experience the audio set up procedure when you open the app, something that was created to help teachers (who are often not very confident with audio) to set things up. I really need guys like you to test this, people who can provide useful feedback before I put this out on general release to teachers. As I say, this software is, and always will be free.

Have a mic plugged into your computer, go through the setup to check everything's working okay (just click yes to the first question it asks you about the microphone setup guide), and then click on the big red circle to start recording into it. Press 1,2,3 or 4 on your keyboard to add more circles. Clicking one the different buttons at the top of the screen put's LooperDooper into different "modes", put it into "play/stop" mode and clicking the circle will now make it play/stop etc. You should be able to work out everything else just fine, but one more hidden feature - if you click and hold on any of the mode buttons for a couple of seconds you can another mode button will be revealed with slightly different functionality (clicking and holding the delete mode button just deletes all of the circles at the same time).

Any help you might give would be really, really appreciated and might help more disabled kids make music that they have total ownership over!

You can download it here: https://www.dropbox.com/s/d4tkbgqm22imnz2/LooperDooper.zip

Many thanks.