Problem opening hoster demo

[Buttons]

Need help again, downloaded hoster demo and when I try to open it, it gives me this error Hoster.Demo.exe-unable to locate DLL. I must have missed something along the way. Thanks again, everybody has been a great help to me.
Thanks, buttons

[danny_g]

had the same problem- it was fixed for me as soon as I added windows media player to my system. is media player on yours?