howdy... I have been out of the Office loop for a few years, and I'm
wondering what is the most 'state of the art' way to implement an Excel
Add-in. In particular, I will be dealing with Excel versions 2003 and later,
and using .NET 3.0 (or 3.5 if needed).

When I was last involved in Add-In development, the best implementation
involved using C# and hooking in to Excel through the CommandBars actions to
instantiate the COM addin. I have noticed that Visual Studio 2008 has some
builtin project types dealing with office products... are these soley for use
with Office 2007 products, or would 2003 work with them as well.

I will definitely appreciate it if someone in the know would point me in the
right direction.. .I would hate to get started on a project, only to find out
that there are much better alternatives out there now. Also, if you know of
any web resources available that will help me get started, they are
definitely appreciated.

-jp