Windows Phone 7 and VAST

Mar 1, 2013 at 11:02 AM

I have an application that uses SMFPlayer and I want to display VAST ads.
My Code:
        <Media:PlaylistItem MediaSource="">
                <Media:MarkerResource x:Name="Marker" Format="VAST" Source=";jsp=30&amp;dx=96450&amp;adType=PREROLL&amp;quantity=1&amp;t=" />
Movie starts, but the ads are not displayed. What am I doing wrong? On Windows 8 every thing is ok.