DTO in C# 4 Part6

gistfile1.cs

Assembly assembly = Assembly.LoadFrom(@"./delme.ext.dll");
object instance = assembly.CreateInstance("delme.ext.CDelmeExt");
CSharpCallPayload payload = 
  new CSharpCallPayload(
    RuntimeBinder.GetInstance(),
    false,
    false,
    "WhoAreYou",
    typeof(object),
    null);

var callSite = CallSite<func<callsite, object,="" bool,="" object="">>.Create(payload);
var func = callSite.Target;
object str = func.Invoke(callSite, instance, true);

if (str is string)
  MessageBox.Show((string)str);