I was wondering if there was any way to connect my casio px800 piano to windows media player so that the visualizations respond in real time like it does with Cds and files. Does anyone know of a program or software that can do this?
Thanks.

I don't think this can be done on Media Player in real time.

You'd have to record the audio out of the keyboard, save it as file and then play it back.

Is there any reason you need it in real time? Maybe there's another way to achieve what it is you're looking for