only if you post an ical on a webserver.

Hello,

you should simply send the appointment as an attachement.
There are few possibilities to do:
- right click on an appointment in your calendar and click "forward"
- open an appointment and choose "forward"
- save an appointment as a file and add it to your mail

Roman Brehm

I'm assuming you're talking about recipients not in your Exchange
organization (assuming you're on an exchange server anyways), so, you'd
first create the appointment in your calendar.  Save it out as an iCal and
just host it on a web server somewhere and just link to it.  The plus is
that anyone who has a calendar program that understands ical can use it, not
just outlook users.