Well it turns out that the EXE.xml file is now and probably was working after SU6. But it appears that when the AFC_Bridge application is run by the EXE.xml file it no longer shows up as a background application in task manager as it does when it is run manually. I am pretty sure it did prior to SU6 because I would always check task manager to be sure the LEDs would work prior to loading up a flight. When it did not show up in task manager after SU6 I would manually start the AFC_Bridge application wrongly assuming that the EXE.xml file was no longer working. Out of frustration this morning I just went ahead and began a flight and was surprised to see the LEDs come on. How confusing!!