I have a specific question. I sent out iCalendar files by the library iCal4j but now I need that the receiver of the iCalendar can't propose a new time. So the button 'propose new time' nee te bo disabled.
When I sent out a meeting request from 2010 and disable the option 'Allow New Time Proposals' then the property X-MICROSOFT-DISALLOW-COUNTER is set to true. This option seems to work with outlook 2010 but isn't accept by outlook 2007.
Does someone have an idea for a other property setting?
iCal4j code:
//add property so ms outlook knows that the users can't propose a new time
XProperty xprop = new XProperty("X-MICROSOFT-DISALLOW-COUNTER","TRUE");
vEvent.getProperties().add(xprop);
Edit It seems that outlook 2007 also use X-MICROSOFT-DISALLOW-COUNTER:TRUE to disable the button, but unfortunately this isn't accepted on the client's exchange server.