Sub PlayVideo(videoId As String)
    Dim no As NativeObject = WebView1
    no.RunMethod("setMediaPlaybackRequiresUserAction:", Array(False))
    WebView1.LoadHtml($"<!DOCTYPE html><html>
   <head>
   <style>body{margin:0px 0px 0px 0px;}</style></head>
    <body> <div id="player"></div>
    <script> var tag = document.createElement('script');
    tag.src = "https://www.youtube.com/player_api";
    var firstScriptTag = document.getElementsByTagName('script')[0];
    firstScriptTag.parentNode.insertBefore(tag, firstScriptTag);
    var player; function onYouTubePlayerAPIReady()
    { player = new YT.Player('player', { width:'${100%x}', height:'${100%y}', videoId:'${videoId}', events: { 'onReady': onPlayerReady, } }); }
    function onPlayerReady(event) { event.target.playVideo(); }
        </script> </body> </html>"$)
End Sub