Hello World ServiceStack ASP.NET Web Service in F#

Global.asax

<%@ Application Inherits="HelloFSharp.Global" %>

HelloAsp.fs

(*  Hello World ServiceStack ASP.NET Web Service in F#

    Instructions:
      1) download https://github.com/ServiceStack/ServiceStack/downloads
      2) fsharpc -r:ServiceStack.Common.dll -r:ServiceStack.Interfaces.dll -r:ServiceStack.Text.dll -r:ServiceStack.dll --target:library HelloAsp.fs
      3) mkdir bin && cp *.dll bin
      4) echo "<%@ Application Inherits=\"HelloFSharp.Global\" %>" >> Global.asax
      5) copy Web.config mappings from http://www.servicestack.net/ServiceStack.Hello/
      6) xsp4
*)

namespace HelloFSharp 

    open System
    open ServiceStack.ServiceHost
    open ServiceStack.WebHost.Endpoints

    type Hello = { mutable Name: string; }
    type HelloResponse = { mutable Result: string; }
    type HelloService() =
        interface IService<Hello> with
            member this.Execute (req:Hello) = { HelloResponse.Result = "Hello, " + req.Name } :> Object

    //Define the Web Services AppHost
    type AppHost =
        inherit AppHostBase
        new() = { inherit AppHostBase("Hello F# Services", typeof<HelloService>.Assembly) }
        override this.Configure container =
            base.Routes
                .Add<Hello>("/hello") 
                .Add<Hello>("/hello/{Name}") |> ignore

    type Global =
        inherit System.Web.HttpApplication
        new() = { }
        member x.Application_Start() = 
            let appHost = new AppHost()
            appHost.Init()

Web.config

<?xml version="1.0"?>
<configuration> 

<system.web>
  <httpHandlers>
    <add path="*" type="ServiceStack.WebHost.Endpoints.ServiceStackHttpHandlerFactory, ServiceStack" verb="*"/>
  </httpHandlers>
</system.web>

<!-- Required for IIS 7.0 -->
<system.webServer>
  <handlers>
    <add path="*" name="ServiceStack.Factory" type="ServiceStack.WebHost.Endpoints.ServiceStackHttpHandlerFactory, ServiceStack" verb="*" preCondition="integratedMode" resourceType="Unspecified" allowPathInfo="true" />
  </handlers>
</system.webServer>

</configuration>