I ran across this but I don't know anything about it. Just wanted to pass it along.
Try putting this in your mio,
http://www.freeweb.hu/izemize/exec.zip. The app is called Executability check. No installation is needed, just double click it from within the mio and browse to the program you are having difficulties running. And it will tell you if you're missing any dll files.
EDIT: This application appears that it might have limited information available. It ...