Hi Ken,

Thanks for the reply. Do you know how to check what object is referencing to
a contact item? Fyi, i have set the contact item to nothing and as far as i
concern, there are no more object are referencing the contact item.

Thanks.

"Ken Slovak - [MVP - Outlook]" wrote:

That usually means that you have the item referenced in some other objects
that are causing a conflict, or that you haven't released objects that have
a reference to the item in some other location.

--
Ken Slovak
[MVP - Outlook]
http://www.slovaktech.com
Author: Professional Programming Outlook 2007
Reminder Manager, Extended Reminders, Attachment Options
http://www.slovaktech.com/products.htm


"ck" wrote in message
...
Hi all,

I encountered the following error message while try to move a contact from
one folder to another folder.

- Cannot move the items. The operation cannot be performed because the
message has been changed.

For your information, i add event handler for Contact_ItemRemove event.
The
error will occur when i try to update UserProperties for the particular
contact.

I am using VSTO SE and Outlook 2007.

thanks!