http://blogs.msdn.com/b/vsto/archive/2009/12/15/making-a-custom-group-appear-in-the-message-tab-of-a-mail-item-norm-estabrook.aspxYou can add a custom group to the Message tab of an Outlook mail item.&#160; For example, here is a custom group named &quot;MyCoolGroup&quot; that I added to the message tab of a new message: Outlook lets you open a message in the following two modesen-USTelligent Evolution Platform Developer Build (Build: 5.6.50428.7875)http://blogs.msdn.com/b/vsto/archive/2009/12/15/making-a-custom-group-appear-in-the-message-tab-of-a-mail-item-norm-estabrook.aspx#10355003Tue, 02 Oct 2012 05:12:56 GMT91d46819-8472-40ad-a661-2c78acb4018c:10355003sudeepg<p>Thank you for this article! It is exactly what I wanted to know!</p> <div style="clear:both;"></div><img src="http://blogs.msdn.com/aggbug.aspx?PostID=10355003" width="1" height="1">http://blogs.msdn.com/b/vsto/archive/2009/12/15/making-a-custom-group-appear-in-the-message-tab-of-a-mail-item-norm-estabrook.aspx#10145378Thu, 24 Mar 2011 14:25:10 GMT91d46819-8472-40ad-a661-2c78acb4018c:10145378Les Z<p>Perfect. Just what I was looking for. Thanks!</p> <div style="clear:both;"></div><img src="http://blogs.msdn.com/aggbug.aspx?PostID=10145378" width="1" height="1">