public void Load()
        {
            DirectoryInfo di = new DirectoryInfo(AppDomain.CurrentDomain.BaseDirectory);

            foreach (FileInfo fi in di.GetFiles("VisualControls.*.dll"))
            {
                Assembly lib = Assembly.LoadFrom(fi.FullName);
                foreach (Type t in lib.GetExportedTypes())
                {
                    if (t.GetInterface(typeof(IVisualControlsPlug).FullName) != null)
                    {
                        IVisualControlsPlug plug = (IVisualControlsPlug)Activator.CreateInstance(t);
                        InitializePlugin(Env.Current, plug);
                    }
                }
            }
        }
 private void InitializePlugin(IEnvironment env, IVisualControlsPlug plug)
 {
     plug.Initialize(env);
     visualPlugs.Add(plug);
 }