I recently received an email related to a post I left at Dan Crevier's Blog back in March of 2004. I was creating an add-in for Outlook 2003 that would process Pay Pal payments for DB Sleuth , a data browsing utility that my friend Bob LaGrange developed for exploring SQL Server based applications.
At the time I was developing in VS 2003 and running into some debugging issues (i.e. breakpoints did not function). I resolved the issue after several days of frustration and a call to MS using one of my support calls so I posted the solution on Dan's blog.where I had gotten my initial starting info for developing an Outlook Add-In.
I've received several emails in response to my post in the intervening 2 years. My latest response on the subject is simple: USE VSTO (Visual Studio Tools for Office). Of course this requires upgrading to VS 2005.
While there are many many other reasons for upgrading this one alone justifies the upgrade if you are developing any kind of Office Add-In. The object model is much more robust and easier to implement. All of the problems I ran into 2 years ago are gone.
Ron cicotte