The TAO_MESSAGING dll initialization creates the ACE_Object_Manager object 
before ace_os_main_i is called. When the application creates singleton objects 
the are added to the list of the ACE_Object_Manager object created by 
TAO_MESSAGING instead of the ACE_Object_Manager object created by 
ace_os_main_i. When the application exit, no singleton are deleted. 


Workaround:

Add these line before returning from main.

   ACE_OS_Object_Manager::instance()->fini();
   ACE_Object_Manager::instance()->fini();