title: Using .NET 4.0 for development server
body: <p>My ASP.NET application runs on IIS on my web server and uses Microsoft .NET Framework 4 Beta 2.  (Its Application Pool is set to .NET Framework version <code>.NET Framework v4.0.21006</code>.)</p>
  
  <p>I debug on my development machine using the ASP.NET Development Server that comes with Visual Studio.</p>
  
  <p>How do I make my development machine also use .NET 4.0 ?</p>