2015-04-28-tutorial-on-creating-loosely-coupled-applications-with-mef_002.cs

AggregateCatalog catalog = new AggregateCatalog();
 
 // Add all the parts found in all assemblies in
// the same directory as the executing program 
 
catalog.Catalogs.Add(
 new DirectoryCatalog(
  Path.GetDirectoryName(
    Assembly.GetExecutingAssembly().Location )
)
);
 
CompositionContainer container = new CompositionContainer(catalog);