Help creating an Excel Add-in using VS205 in either VB.NET or C#
 

Hi there, I know that what I'm asking is relatively simple so I would
appreciate any help I could get. I want to create an Excel Add-in but I
don't want to use VBA. The reason is that I want to hide my code. So what I
would like to do is to create an Excel Addin using VS 2005 in either VB.NET
or C#.

Any sample code out there or perhaps steps by step instructions somewhere on
the web as to how to create one? Essentially I want to create an Excel Addin
and when I deploy it using an MSI on a machine I want to be able to run a
formula something like =MyFormula() and this should return something simple
like an integer value.

Thanks
Michael