Outlook 2003. Hmmm. The Calendar extension in Thunderbird/Firefox, allows
this. If you have a recurring appointment or event, say weekly over a period
of weeks but there is one week in the middle of the period where the event
or appointment is NOT happening, then Thunderbird/Firefox calendar allows
you to put that date in the recurring event/appointment as an exception so
you don't get reminded about a non-existent happening!
I can't see a similar function in Outlook 2003 calendar......