this is a new feature of Excel 2003.

MacroOptions Method [Excel 2003 VBA Language Reference]
http://msdn.microsoft.com/library/en...roOptions1.asp

in excel 2000, it is difficult to register vba function to a custom
category, because the category number is not fixed.

see also
http://xcell05.free.fr/
(English page)

--
HTH

okaizawa

wrote:
Hi
How can I create a new function category?
Thanks