Maybe look up using webkit

You can write a browser in .NET, not a problem. You just cannot use the IE Webbrowser control Its just a type of project I know a lot of people want to make, and they all try to use the Webbrowser control(if they use .NET) first.

What you need to do is download the page data with sockets and interpreted it, you can use the net.webclient to, but idd recommend the use of sockets if you want an in depth understanding. As you may understand, this is a huge task. Once the data have been interpreted, you need to render a web page with images, colors, buttons etc etc.(All from scratch)