Web API Routing Not working in Web Site App.

[shaunk]

I have developed an web application in Visual Studio 2013 which uses the development server that comes with VS.
I now want to port it to a Website to use IIS running on my PC.
I have had a thousand challenges to date, not the least of which is the Global.asax file which registers all the web API stuff.
In order for it to compile, I had to separate out the code behind to a class called 'Global' in the 'App_Code' folder and have Global.asax inherit from Global.
It all compiles happily now.

I have also put all my Web API controllers under the app_code folder as per various recommendations.

However, in debug mode at least, Application_Start never seems to run, so I can't be sure my web api stuff is being initialised.
in IE under developer tools, the first call to a web api controller falls over with a 404, and it think its a text/html call, not application/json. The call is a $.getJSON method.

Any help much appreciated.

This is how the Global.asax file look:

<%@ Application Codebehind="Global.asax.cs" inherits="Global" Language="C#" %>

This is how the Global.cs file looks.

public class Global : System.Web.HttpApplication

{	
		 public class WebApiApplication : System.Web.HttpApplication
    {
        protected void Application_Start()
        {
            
            //Database.SetInitializer(new DropCreateDatabaseIfModelChanges<GNC_CorpContext>());
            // LearnNow version with context added.
            Database.SetInitializer<Test_CACS_Data.Models.Test_CACS_DataContext>(new DropCreateDatabaseIfModelChanges<Test_CACS_DataContext>());
            AreaRegistration.RegisterAllAreas();
            GlobalConfiguration.Configure(WebApiConfig.Register);
            FilterConfig.RegisterGlobalFilters(GlobalFilters.Filters);
            RouteConfig.RegisterRoutes(RouteTable.Routes);
            BundleConfig.RegisterBundles(BundleTable.Bundles);
        }

There has to be a pony in this pile of s*%t somewhere.