Riteman -4 Light Poster

I have used .net's webbrowser control. Unfortunately, it is not supporting HTML5 or Complete JavaScript. When I googled, many said that the control depends on IE version installed in the machine. I have installed IE10. Though it supports HTML5 (Even I checked the same webpage in IE10 and it worked), the webbrowser control in my application doesn't. In some forums, they recommended to tweak the registry. How can I do it in every Clients machine? Is there anything that can I do?