Ah, yes. I remember now. There is a bug in the component that if the window is started as minimized to system tray and start minimized, it loses track of the form on close. So, when the application closes, all the events do not fire. I've managed to take this as far as I can without kludging it up, which will work for most cases. The only time you should see this message (after the release) is if you start VA minimized with minimize to system tray and then you kill VA through task manager.
Good catch on that one.
Edit: I put a build out in the, 'unofficial' bin if you want it:
http://www.voiceattack.com/unofficial