Ceci est an easy work around from using VBA. Unless you absolutely have to have this dans le calendar, it just occurred to me vous pouvez use Tasks to do this. If that is OK, keep reading. Si cela has to be dans le calendar, disregard.
Tasks let you définissez le reminder date and time, where the appointment doesn't.
Every time you get a reminder for this Task and complete it, it will generate a nouveau one for the following month. I déjà marked the one for January complete and it generated this one for February. Hope that helps.