Verifying the version of .Net Being used by web forms site
<p>I installed .Net 4.5 and have targetFramework="4.5" in my web.config file but on an error page I saw this:</p>

<p>Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.17020</p>

<p>How can I verify it is really using 4.5?</p>
