Where is this MAPIFolder? Is it in a PST file, your Exchange mailbox, a
delegate mailbox, public folder?

What are your permissions on that folder?

Can you perform any other operations on that appointment item? What is the
exact error?

--
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


"OctopusThu" wrote in message
...
I got an AppointmentItem from an MAPIFolder and try to modify its fields.
But
an exception occurred telling me that I had got no privilege to do
this......

public void modifyItem(AppointmentItem item, CalItem calItem)
{
......
item.End = calItem.endTime; (Exception)
......
}