Shared add-in UDF visibility
 

Hi

I am working on an Excel 2007 add-in using a Visual Studio shared add-in
template project that implements the IDTExtensibility2 interface.

Within this add-in I would like to expose some Excel user defined functions.
I do not however seem to be able to make these functions visible to Excel.

I have tried defining the functions as public static and have declared them
as [ComVisible(true)]

The assembly is signed and appears to have loaded correctly when I view the
add-in information from within the Excel add-in options window.

Any thoughts on what I might be doing wrong?