Media Player Classic cannot play audio

Hi Experts,
I have media player classic installed on my Vista Enterprise 32bit OS..with K-Lite Full Codec Pack..
I have downloaded the video from asp.net website with extension .wmv..which can be played in media player classic but with no audio support...

Here's the link for the video:
http://www.asp.net/learn/videos/video-06.aspx

Also i get this error message...
Media Type 0:
--------------------------
Audio: RealAudio SIPR 16000Hz mono 16Kbps

AM_MEDIA_TYPE:
majortype: MEDIATYPE_Audio {73647561-0000-0010-8000-00AA00389B71}
subtype: Unknown GUID Name {00000130-0000-0010-8000-00AA00389B71}
formattype: FORMAT_WaveFormatEx {05589F81-C356-11CE-BF01-00AA0055595A}
bFixedSizeSamples: 1
bTemporalCompression: 0
lSampleSize: 20
cbFormat: 22

Need Help ASAP...