Outlook 2003 : cannot add event to calendar went received as .ICSIcal/iMip via mail

[Olivier]

Hello

I'm using Outlook 2003 (11.8118.6568) SP2, and I have the following
trouble :

I'm receiving calendar invitation via emails containing attached .ICS
afiles, generated from various sources (Google Calendar, Mozilla
Lightning,...).
When reading the invitation mail and double-clicking on the calendar
icon of the attached .ICS file, an Outlook calendar window opens, but
all buttons "Accept, Decline, Whatever" buttons at grayed out, and a
message states that "This meeting is not in the calendar... It has been
moved or deleted". ! So, I cannot answer this invitation, nor add it to
my calendar.

The strange thing is that, if I detach and save the .ICS attached file
on the desktop, and if I open it from there by double-clicking on it,
Outlook launches and the same calendar window than before appears, but
with all buttons active and no error message. Then I'm perfectly able to
add the meeting to my calendar.

What may be wrong ?

Thanks

Olivier

 

[Olivier]

And if it may help somehow, all this happens in the context of corporate
Exchange servers.

Olivier a écrit :