title: Runtime Version of DLL is not changing
body: <p>When I view the properties of my dll referenced inside visual studio I see that the Runtime Version is v2.0.50727.   I have recompiled the dll to target version 3.5 of the .net framework and reimported the dll, but the Runtime Version is still v2.0.50727.  I think there is something I don't understand.  Can someone explain why it isn't 3.5 now.</p>
  
  <p>Thank you</p>