This is generally caused by an argumentless kill command in the routines called by the legacy task. Killing all the variables will also get rid of some variables relied on by the task manager. Do any of the routines called (ROUTINE1-ROUTINE6) call argumentless kills to clean up variables? 

Great post, Clark. 

Is there a particular pattern that the "Generic" printer drivers for windows follow that seems to make them work for more people? Is there a place where that is stored on Windows 7 or XP where I could read through the actual code it runs?