not sure ifd that`s possible but ...

I`m wondering how to make a a custom Browse4Folder with a combo selection of filetype the user wants to search for (so when user is adding files to a listbox he knows and can select filetype .. )
I could do the combo box on the form I know that but it would be much nicer if it would be right on the Browse4Folder Control so (he doesn`t have to jump back and forth )

.. any ideas anybody?
thanks