There's no internal function for that. You can filter the appointments in
that folder based on a date range and use the filtered collection of items
to compare for conflicts. There are samples for how to set up a date filter
for Items.Restrict in the Object Browser Help.

--
Ken Slovak
[MVP - Outlook]
http://www.slovaktech.com
Author: Absolute Beginner's Guide to Microsoft Office Outlook 2003
Reminder Manager, Extended Reminders, Attachment Options
http://www.slovaktech.com/products.htm


"Kerstin Schiebel" wrote in message
...
Hi,

I have a macro (and a own formular) which creates a new appointment in a
defined calendar.
Is there a (intern) function for checking of overlapping appointments?

Thanks
Kerstin
PS: OL2002