C# - Run a hosted web application inside the .exe

I have a hosted web application: http://tuts.techedu.in/kids/sapshidi/snake.html

I want to run this inside my .exe

I thought I would just be able to use something like:

webBrowser1.Navigate("http://tuts.techedu.in/kids/sapshidi/snake.html");

But that doesn't seem to work at all.

Any ideas on how I can achieve this?

Thanks in advance