Determining new category number

[Matt]

Is there a way to determine the category number of a new
function category I've created for UDF's?

I would like to distribute an add-in to co-workers with my
UDF's grouped together in a new category. But depending
on add-ins already installed on a user's pc, the category
number for the new category can vary. So, I would like to
be able to run a macro that reads the new category's
number, then assigns the udf to that category. Hope I
haven't made this sound to convulted.

Thanks,
Matt