A Visual Studio patch that fixes the Visual Studio F5 debugging of IIS7 applications on Windows Vista Home Premium and above has been released! This patch solves the "An authentication error occurred while communicating with the web server. Please see Help for assistance.", and "Debugging failed because integrated Windows authentication is not enabled. Please see Help for assistance"
Tutti i dettagli del problema e il link al file di aggiornamento sono disponibili in questo post.