WinForms WebBrowser控件:强制所有链接在新(IE)窗口中外部打开

private void webBrowser1_Navigating(object sender, WebBrowserNavigatingEventArgs e)
{
    if (e.Url.ToString().StartsWith("http"))
    {
        e.Cancel = true;
        Process.Start("iexplore.exe", e.Url.ToString());
    }
}

private void webBrowser1_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
{
    foreach (HtmlElement link in webBrowser1.Document.Links)
    {
        if (link.GetAttribute("href").StartsWith("http"))
        {
            link.SetAttribute("target", "_blank");
        }
    }
}