What version of Outlook? If this is 2007 or later you can use a Custom Task
Pane. But that would be visible or not, it wouldn't slide.

You can use the Add-In Express framework to add additional panels to Outlook
2000 or later but I'm not sure about sliding, I don't think so.

Finally, you can do your own Win32 API hacking and do all the plumbing on
your own, see
http://www.codeproject.com/KB/office...l_Outlook.aspx for a
starter for that. This is pretty much what the Add-In Express people have
done already with their code framework, but if you do all the plumbing
yourself you can design things the way you want.

--
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


"Fang" wrote in message
...
Hi,

I need to add a new panel to the email window, ideally it is a sliding
panel. Any idea whether it is possible? Where should I look into?
Googling does not return much useful information at this point.

Thanks a lot.