Question : Disable Port 135/139

I have a Winnt SP5 box acting as a firewall on a cable modem.  It is also my main file server.  Since it is on a cable network, it has 2 network cards (one hooks into the cable modem, and one hooks into my home network).  I would like to disable Port 135 and Port 139 on the outside card.

How do I do this?

Answer : Disable Port 135/139

NetworkNeighborhood-->Properties __| Protocols |__
   Select TCP/IP ->Properties
__| IP-Address |__
   Select your NIC in the pulldown menu, then enable the Security check (bottom of window)
   then use  Configure  button
(rest should be self-explanating)