Code:
listbox.additem ""
lngLast = listbox.listcount -1
listbox.list(lngLast,0)="ID"
listbox.list(lngLast,1)="Disp data"
Something like that?
I am not sure it is list, but you should have the intellisense, have a look through that. Might be listitem. Or Item (sorry cannot remember!)