I worked on Bug2925 when discovered that on WinXP VC8 (build WinXP_VC8_FULL) there is a crash that didn't occur on any other system (2925 test easily reproduce this bug, so I don't add one). This crash seem to be not related to 2925 fix.

After a deeper investigation I found that when loading DiffServ dll ORBInitializer_Registry is initialized and added to ACE_Service_Repository::service_vector_. This happens before PortableGroup.dll is loaded. Later when svc.conf is processed and the PortableGroup dll is finally loaded the services from that dll are added after ORBInitializer_Registry. Also while loading the dll several TAO_PortableGroup_ORBInitializer objects from PortableGroup are added to ORBInitializer_Registry. Then the test works fine and when it comes to finishing the services from ACE_Service_Repository are deleted in the reverse order (along with unloading unnecessary dlls), at the moment when ORBInitializer_Registry needs to be deleted PortableGroup.dll is already unloaded and objects in ORBInitializer_Registry cannot find their desctructors. Here we have an ACCESS VIOLATION.

Strange enough on VC71 the crash doesn't happen. In this build PortableGroup.dll is loaded before DiffServPolicy.dll and even before svc.conf is processed thus finalization of the test goes fine. I checked that in the debugger.