Is there a way to get Excel XP (or later) to display the parameters to a
worksheet functions as the user types in the same way as the built in
functions do.

I am not referring to the function wizard (fx), but the yellow background
control tip that appear below the cell when the open bracket '(' of vlookup
is typed, the parameter name appears in bold as each parameter in filled in.
In VBA/Visual Studio this is called Quick Info or Parameter info.

Any info welcome.