my application is windows based (C#.net) i have two forms both containing a windows media player i go to first form(Form 1) and start a file in media player now if i go to second form and start a file in media player there also , the media player in form 1 should stop how will i achieve this?? i have tried all the methods but nothing have worked like Test ts = new Test(); [First Form] ts.axWindowsMediaPlayer1.Stop(); ts.axWindowsMediaPlayer1.settings.volume=0; ts.axWindowsMediaPlayer1.Dispose(); ts.axWindowsMediaPlayer1.currentPlaylist.clear(); ts.axWindowsMediaPlayer1.close();[Error-com object that has been seperated from its underlying RCW cannot be used] plzz help