Wmv9 with wma9 pro 5.1

[ruby03]

I have a wmv file with wma 5.1:

Codec audio: Windows Media Audio 9.1 Professional
192 kbps, 48 kHz, 5.1 channel 24 bit 2-pass VBR
Codec Video: Windows Media Video 9

I try to play this file with BsPlayer:
The video is good
The audio is stereo; BsPlayer recogizes it like 16bit pcm stereo

I try with ZoomPlayer:
The video is no good
The audio is 5.1;
ZoomPlayer recognizes wma 5.1 only checking the options "Enable extended windows media audio support"

Is there a setting for BsPlayer to play wma5.1?

Thanks

P.S. Sorry for my English