Hi, I've built a APO DLL and a Propperty Page DLL as config UI. But i have not installed them successfully for a USB audio device using sysfx.inf file. How can i install them in Vista? Anyone can help me? Thanks! Best Regards, -------------- John 2007-08-14 ****************** WDMAUDIODEV addresses: Post message: mailto:wdmaudiodev@xxxxxxxxxxxxx Subscribe: mailto:wdmaudiodev-request@xxxxxxxxxxxxx?subject=subscribe Unsubscribe: mailto:wdmaudiodev-request@xxxxxxxxxxxxx?subject=unsubscribe Moderator: mailto:wdmaudiodev-moderators@xxxxxxxxxxxxx URL to WDMAUDIODEV page: http://www.wdmaudiodev.com/