This class implements the IClassFactory interface, and allows objects to be created in multiple apartments.
This class and its members cannot be used in applications that execute in the Windows Runtime.
class CComClassFactoryAutoThread : public IClassFactory, public CComObjectRootEx< CComGlobalsThreadModel >
CComClassFactoryAutoThread is similar to CComClassFactory, but allows objects to be created in multiple apartments. To take advantage of this support, derive your EXE module from CComAutoThreadModule.
ATL objects normally acquire a class factory by deriving from CComCoClass. This class includes the macro DECLARE_CLASSFACTORY, which declares CComClassFactory as the default class factory. To use CComClassFactoryAutoThread, specify the DECLARE_CLASSFACTORY_AUTO_THREAD macro in your object's class definition. For example: