I had the same issue with My Max8. What it was was the order in which I shutdown my applications. I use Outlook with Maximizer. If I closed Maximizer, then Outlook, I would get that message when I shutdown the computer.
If I close Outlook first, then Maximizer, no message.
I'm not an expert, but I believe the Pervasive engine has links so Maximizer can communicate with Outlook and I think they don't release when Maximizer is closed first.
Interestingly, if I do close Maximizer first, I can't even read Outlook e-mails...Outlook tells me there is another program communicating with it that has unexpectidly shutdown.
I hope this helps you!
Joe