如何给webbrowser指定IE版本

void Button1Click(object sender, EventArgs e)

    {

        RegistryKey rk = Registry.LocalMachine;

        RegistryKey rks = rk.CreateSubKey("SOFTWARE\\Wow6432Node\\Microsoft\\Internet Explorer\\MAIN\\FeatureControl\\FEATURE_BROWSER_EMULATION");

        rks.SetValue(textBox1.Text,"11001",RegistryValueKind.DWord);

        rk.Close();

    }