I have no idea how Outlook does things like that internally. For a reply the
attachments on the original message are always stripped out anyway though,
so that is likely the answer. You might want to look at saving any
attachments that you want on the reply to a temp folder in the file system,
then adding them to the reply message rather than making a copy of the
original message.

--
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


"Womble" wrote in message
news
Unfortunatlly asking the users to close the attachment before clicking the
new button isn't really an option - similar with getting the code to close
the attachment prior to the copy.

Because I'm trying to code my own reply behaviour within an attatchment
i.e.
I want to Create a "Reply with History" button while leaving the default
behaviour of Outlook to be Reply without history. Therefore when I had
issues around the behviour of Outlook when changing the properties of the
email, I felt that copying the item was the best approach.

Anu thoughts as to how Outlook manage it, because it's own reply button
doesn't prompt about an item being open when I use it's button.