If you have an embedded browser in your Windows application, you may be encountering a rendering or some other kind of compatibility issue with the content you are trying to display. In his most recent blog post, Premier Developer Consultant Pat Altimore discusses some options to try to fix common problems with the WebBrowser control in .NET.

http://blogs.msdn.com/b/patricka/archive/2015/01/12/controlling-webbrowser-control-compatibility.aspx