I am trying to debug a problem that appears in IIS7 using the application pool configured for .NET 4. My Visual Studio ASP.NET Development Server says that it uses 2.0.50727.5456.

I would like to debug this from VS, so I would like the .NET versions to match. I found port configuration information, but there was no version setting nearby. And I could not find anything in the Website.ASP Configuration menu in VS.
Is there a way to configure the version of ASP.NET Development Server.NET?
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