Had to encode and then read the HTML then get the browser to display it in html.
private void toolStripButton5_Click(object sender, EventArgs e)
{
url = "http://" + toolStripTextBox1.Text;
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
Stream pageStream = response.GetResponseStream();
StreamReader reader = new StreamReader(pageStream,Encoding.Default);
string s = reader.ReadToEnd();
webBrowser1.DocumentText = s;
}