The addin type decision is up to you. A VSTO addin for Outlook 2003 will run
unchanged also in Outlook 2007 with no problems. The framework and shim
loader technologies are different but you end up with the same result, a COM
addin that's shimmed to load in its own AppDomain.

I answered your installer question in the installation group, but it all
really depends on the capabilities of whatever installer package you're
using.

--
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


"Neetu" wrote in message
...
Thanks Ken,

so That I should use Shared Add-in project for creation of add-in 2003 and
2007 ofice.?

I would also like to know more on how I can use conditional installation
like
a setup project which install either a word addin or outlook add-in ,
depending on user choice?