if you dont want to manually install the aiw devices then add these lines to the [ATI.Mfg.NTamd64] section in C:\windows\inf\atixpwdm.inf
Code:
%MVDCodec.DeviceDesc%=MVDCodec.Device,DISPLAY\NTativmd40
%ativpdxx.DeviceDesc%=ativpdxx.Device,DISPLAY\NTativpd40
%ativpdxx.DeviceDesc%=ativraxx.Device,DISPLAY\NTativra40
%ativpdxx.DeviceDesc%=ativrvxx.Device,DISPLAY\NTativrv40
%ATITUNEP.DeviceDesc%=ATITUNEP.Device,DISPLAY\NTativtu40
%ATIXSAudio.DeviceDesc%=ATIXSAudio.Device,DISPLAY\NTativxs40