Gracefully close Labview 8.2 executable when Windows XP is shutdown

[Acelhp]

I want to know how to properly close a Labview 8.2 executable when Windows is shutdown.  Currently, the executable is attempting to close down but becomes unresponsive.  Furthermore, this only seems to occur after the application has been running for quite some time (a couple of hours or so).  I have included an event structure which captures the 'Application Instance Close?' filter event and notifies the 'Application Instance Close' notify event.  Placing the 'Quit Labview' vi within the notify event does not work.  The program becomes unresponsive.  Without it, it shuts down normally; however, after a couple of hours, it gets hung and becomes unresponsive.  Attached are screenshots of my implementation. 

The application as a whole is communicating with a GPIB / ENET converter device.  The event structure is contained within the beginning of a while loop which handles the communication to this converter device.  Help, please!

[smercurio_fc]

Duplicate thread.

[Acelhp]

Yes, I was trying to be more precise in my problem description in hopes that I could get some assistance to solve this issue.  I felt like starting a new thread was best.

[smercurio_fc]

OK, but in the future please refer to the original thread so that people know the history and don't rehash stuff that's already been tried. It's also helpful to post a message in the old thread to indicate you've moved the discussion to a new thread.