C# webkit.net enable popup

Question

In a C# webkit.net browser how to enable a popup window created by JavaScript window.open()?

I tried these properties:

this.webKitBrowser1.IsScriptingEnabled = true;
this.webKitBrowser1.AllowNewWindows = true;

But nothing changed. I also tried this event:

this.webKitBrowser1.NewWindowCreated += new WebKit.NewWindowCreatedEventHandler(webKitBrowser1_NewWindowCreated);   

But it isn't fire up.