System::TInterfacedObject::AfterConstruction is called automatically after the object's last constructor has executed. Do not call it explicitly in your applications. 

When an instance of System::TInterfacedObject::TInterfacedObject is allocated, System::TInterfacedObject::RefCount is incremented to prevent its destruction while processing the constructor. System::TInterfacedObject::AfterConstruction decrements that System::TInterfacedObject::RefCount to re-establish the correct reference count after all constructors have executed. 

System::TInterfacedObject::BeforeDestruction 

System::TInterfacedObject::NewInstance 

System::TInterfacedObject::RefCount