Outlook Automatic Calendar Reminders?

Does anyone know of a script or a way to set up a rule/filter in Outlook 2003 to automatically set a ten minute reminder in the meeting notice for incoming meeting requests?

It’s sad, but, without Outlook popping up a reminder, I don’t go to the meeting. Some people rarely put reminders on their meetings, and some people occasionally forget to put reminders on meetings. I’d like to figure out a way to apply a rule in Outlook to the effect of:

When message type=calendar arrives
if reminder value = NULL
set reminder value = 10 minutes

…and/or find some kind of add-on that does that same logic when I click accept or tentative.