title: Which version of the .NET Framework is IIS using for my AppPool?
body: <p>.Net Framework 4.5 was installed on my machine and on the IIS Application Pool, I set the .NET CLR version to 4.0.</p>
  
  <p>My question is when running .NET code in this IIS site, which framework version is it using: 4.0 or 4.5 ? </p>
  
  <p>Please see below screen shots.</p>
  
  <p><img src="https://i.stack.imgur.com/s7aQb.gif" alt="inetmgr screenshot"></p>
  
  <p><img src="https://i.stack.imgur.com/yeYgd.gif" alt="installed programs screenshot"></p>