Professional Spreadsheet development by Bullen Bovey and Green will give you
most of what you need to know, and a good overview of the options. When you
know what type of dll and what language then you can use MSDN to get specific
info and download simple examples.

cheers
Simon

"ben" wrote:

Anybody know any good links about where I can learn about using a dll as an
add-in for excel VBA. and autoloading of the add-in on excel start etc...
--
When you lose your mind, you free your life.