Hello Matthew, > Windows Logo Kit 1.6 is kinda old-school; you should switch over to the > Hardware Certification Kit. Thank you for the suggestion. WLK information pages don't mention HCK so I wasn't aware of it. Have downloaded HCK, extracted multimedia tests, ran gaudit_win7.exe - all tests passed successfully. Regards, Eugene ****************** 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/