samba - Sep 2002 - hide the other computer and share in the localnetwork of windows

I want to know if there is a configuration for samba to hide the other computer
and share in the localnetwork of windows, so a windows computer can't see
the other computers and their share....
I think samba in server broadcast must accept broadcast from other computers but
it must send ans empty list and I thing it's possible..

Thanks for the answer.... and tell me how can I do