title: How to add System.Collections.Generic 3.5 to Asp.net 2.0?
body: <p>I'm adding functionality to my existing Asp.net 2.0 application. I want to use some of the .net 3.5 features so I add some .net 3.5 assemblies to my web config. Which I added System.Core and System.Xml.Linq. </p>
  
  <p>I want to use IEnumerable version 3.5, what library should I need to add to the web config?</p>