If you are using VSTO SE to develop the Outlook 2007 Add-in. Visual Studio will add the setup project for you, you just need to add custom actions which grant full trust to your Add-in assembly into the Setup project. You can refer the following two articles:
http://msdn2.microsoft.com/en-us/library/bb332051.aspx
http://msdn2.microsoft.com/en-us/library/bb332052.aspx
If you are using Visual Studio 2008. You need to create a new setup project. But there are more things we need to take care of, like Registry and Manifest and Permission Trust, read more information in Mary Lee's article:
http://blogs.msdn.com/vsto/archive/2...-mary-lee.aspx
after following above steps still your adding not loaded then
Then, you need to set VSTO_SUPPRESSDISPLAYALERTS environment to 0. This will make you get exact error message.
And Geoff has post a detailed troubleshooting steps in the following thread.
http://forums.microsoft.com/MSDN/Sho...19388&SiteID=1
See if information in above link helps.
If you still face any problem Please let me know..
AtishRG
(E-Mail Removed)