Take a look here, it may help:
http://www.slipstick.com/outlook/share.htm
"Donna" wrote in message
...
We have 3 computers that are networked together (not via a server). One
of
the machines stores all the shared data files and is also being set up to
maintain several peoples calendars for appointments. Is there any way we
can
have the other two machines access and modify the calendars in real time?
We
know we can share the calendars via Office Online but that only allows
viewing and not modifying.
Is our only option using Exchange Server or is there a simpler way?