I'm using Windows Media Services to expose videos (wmv files) and
authentication (WMS Negotiate Authentication Plug_in) to protect the media.
When I point Silverlight 2 at a protected URI, I get an error (Error Type=
MediaError, ErrorCode=4001, ErrorMessage=AG_E_NETWORK_ERROR).
This is working fine with WMP 11 or when I use Silverlight with Anonymous
User Authentication Plug-in enabled.
Any idea/reason for this issue?

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Many thanks for your help...
Glenn - 27 Aug 2008 18:54 GMT
I had the same issue. Turns out that silverlight doesn't support mms I had to
use Http and it worked fine.
> I'm using Windows Media Services to expose videos (wmv files) and
> authentication (WMS Negotiate Authentication Plug_in) to protect the media.
[quoted text clipped - 4 lines]
>
> Any idea/reason for this issue?