tavaresstudios.com — The recent release of the ASP.NET MVC Framework made a change to the IControllerFactory interface at the request of users of dependency injection containers. Instead of passing the controller factory the type of controller desired, it now gets the string from the route, and the factory can now resolve that type however it wishes. This fits with most other DI containers, since they have to have everything pre-configured anyway. However, Unity is a little different, in that you don't have to register concrete types ahead of time. This change requires Unity users to register types ahead of time like everyone else, or do reflection to find controller types at runtime. Kind of annoying. original link