The event to use is MailItem.CustomAction, which fires when the user clicks a voting button and passes as parameters the Action and the response item that it creates.

Are you planning to install your addin on each recipient's machine?

--
Sue Mosher, Outlook MVP
Author of Configuring Microsoft Outlook 2003
http://www.turtleflock.com/olconfig/index.htm
and Microsoft Outlook Programming - Jumpstart for
Administrators, Power Users, and Developers
http://www.outlookcode.com/jumpstart.aspx

"Mohit" wrote in message ups.com...
Thanks for immediate reply.
Now I want to know that how can I perform my logic (say database
entry) to be executed on that button click.
I want to write routine like click event handling for that voting
button. How can I do that?

"Mohit" wrote in message ups.com...
Hi,

I wanted to create and program Accept/Reject (of Meeting Request
type) sort of buttons but these buttons will be on my HTML mail
messages. I mean when recipient opens my mail message he will be
presented with mail message body and at the bottom my buttons will be
there inside the mail Item.(This sort of functionality is common when
using Meeting Request Items. But I want this to work with Mail
Item.).

For this I am adding the necessary HTML button logic in the mail
item's HtmlBody.
On doing this buttons are appearing when my mail is opened but they
are not working.

On right click and going to view source option I am getting correct
logic there that i have inserted. And when this View Source Code is
runned in IE as a different html page it works!!! but not inside
Outlook environment. And I want it to work inside Outlook.

For information I am developing an Outlook Addin using VSTO 2005 SE
and Outlook 2003.