Hey Ken,

Redemption solved the problem !

Thanks for helping!
grtz Koen

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

I said it was read-only using the Outlook object model.

I'd guess it was read-only even if you use the PropertyAccessor object in
Outlook 2007 to try to set the property using the DASL property tag
"http://schemas.microsoft.com/mapi/proptag/0x0070001E".

My guess is if it would work at all you'd have to use an Extended MAPI
wrapper such as Redemption (www.dimastr.com/redemption). I don't know if it
would work the way you want even then.

--
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


"Koen Verwimp" wrote in message
...
Thank you for replying Ken!

I tried to set the ConversationTopic field with VSTO, but this is a
readonly
field. Do you know another way to set this field?

regards,
Koen

MailItem temp = ...
temp.ConversationTopic = ...

ConversationTopic Property:
Returns a String representing the topic of the conversation thread of the
item. Read-only.