In my application I enumerate all device of category xxx_AUDIO & xxx_RENDER, and when I hook up a E-MU 0404 USB unit I get the MIDI interface of it enumerated aswell. What should I check for to exclude it from the enumeration ?? TIA /Rob ****************** 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/