Hi Rob,

This is not natively supported in Excel but you may like to look at Laurent
Longre's Funcustomize add-in which is freely downloadable at:

http://xcell05.free.fr/


---
Regards,
Norman



"Rob" wrote in message
...
Hi

Is there a way that I can describe the paraeters of my function so the
user
will the description when he clicks on the "black equals" button to the
left
of the formula bar?

Thanks

Rob