C# - Search Plugin-DLLs with one line

var result = from dll in Directory.GetFiles(Environment.CurrentDirectory, "*.dll")
                         let a = Assembly.Load(Path.GetFileNameWithoutExtension(dll))
                         from t in a.GetTypes()
                         where t.GetInterface(typeof(IPluginInterfaceName).ToString()) != null
                         select Activator.CreateInstance(t) as IPluginInterfaceName;