Win Media Player got something wrong

I do not know when it started. When I listen any online radio/play web .wmv
file, it fails and show the following message:

"Windows Media Player cannot play the file because the specified protocol is
not supported. If you typed a URL in the Open URL dialog box, try using a
different transport protocol (for example, "http:" or "rtsp:")."

Any idea please?

solved.
idea from http://answers.yahoo.com/question/in...6063859AAtloqa

"John" <> wrote in message
news:09CBD3E8-D5F6-488E-8AE8-...
> I do not know when it started. When I listen any online radio/play web
> .wmv file, it fails and show the following message:
>
> "Windows Media Player cannot play the file because the specified protocol
> is not supported. If you typed a URL in the Open URL dialog box, try using
> a different transport protocol (for example, "http:" or "rtsp:")."
>
> Any idea please?
>