Implementations of interface through Reflection

Assembly assembly = Assembly.GetExecutingAssembly();
List<Type> types = assembly.GetTypes();
List<Type> childTypes = new List<Type>();
foreach (Type type in Types) {
  foreach (Type interfaceType in type.GetInterfaces()) {
       if (interfaceType.Equals(typeof([yourinterfacetype)) {
            childTypes.Add(type)
            break;
       }
  }
}

Maybe something like that....