I’m a Italian user  of Avid Liquid 7.20 (build 4296) update 4296 in windows XP SP3

For the first time I have created a project in HD  with TimeLine setup :

Impostazioni predefinite : 1080/50i(1440x1080 16x9)

Risoluzione : 1440 x 1080 – 16:9 (non square)

Qualita’ FX : Bassa qualita’

Qualita’ ottimale sorgente : Normale

Qualita’ minima sorgente : Normale

Codec predefinito : MPEG-2 MP@HL (M2V)

and I need to export it in WMV (Windows Media HDV 1080/50i 1440x1080).

But when I Try Liquid send me this message :

XPM WMF   The requested video codec is not installed on this system.

Where can I find this Codecs ?

There is an other method to do it ?

There is anyone that can help me  ?

Thanks a lot

W. Inama