Testing WebSocket support in ASP.Net 4.5

I've followed the descriptions in Paul Batum blog post Getting started with WebSockets in the Windows 8 developer preview  to test websockets in ASP.Net 4.5. Notice that you can use the Express version of Microsoft Visual Studio 2011 to run the WebSockets samples. Also see the Building real-time web apps with WebSockets using IIS, ASP.NET and WCF session from the Build conference. The samples seems to working correctly, so I will try to port my XSocket with Esri ArcGIS for JavaScript demo to ASP.Net.