Hello, I'm MomongaPenguin, I'd like to know How to change the preferred audio device programmatically. I've heard it was already discussed in the Yahoo Group message 738. But I can not join the group, because it was already closed. Please help me, Thank you. --------------------------------- GANBARE! NIPPON! Yahoo! JAPAN JOC OFFICIAL INTERNET PORTAL SITE http://mail.ganbare-nippon.yahoo.co.jp/