Does anyone know how to limit apointment reocurances for recources in
outlook/exchange?

The request is:
When making a recurring meeting request and booking a resource such as
a room (from the list in the GAL) we want to force the limit of
recurrance to say a month.
So users cant book a room every wednesday at noon forever, need to
limit the resouces to only accept recurring bookings for say a month.
Exchange 2000, office 2000, XP and 2003

Anyone?
Thanks in advance.