private void button1_Click(object sender, EventArgs e)
{
    for (int i = 1; i <= 10000; i++)

private void webBrowser1_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
{
    WebBrowser wb = sender as WebBrowser;
    Encoding encoding = Encoding.GetEncoding(wb.Document.Encoding);
    using (StreamReader stream = new StreamReader(wb.DocumentStream, encoding))

public class WebBrowserEventManager
{
    private EventHandlerList _ehList = new EventHandlerList();
    private WebBrowser _wb = null;