I am not really sure if that is what you want, but I successfully suppressed pop-ups with the following:
public Form2()
{
InitializeComponent();
webBrowser1.NewWindow += new CancelEventHandler(webBrowser1_NewWindow);
}
void webBrowser1_NewWindow(object sender, CancelEventArgs e)
{
e.Cancel = true;
}
Hope it helps,
cheers
Andy