When user tries to stream and listen or watch audio or video from Microsoft Windows Media Services, or clicks on a hyper-link starts with mms:// syntax, Windows Media Player (WMP) may give the following error 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 … Continue reading Fix Windows Media Player Cannot Stream and Play File Because Specified Protocol Is Not Supported