How do I open up specific ports?

From: Komodo (
Date: 05/12/04

Date: Wed, 12 May 2004 12:52:33 -0700

How do I tell Windows 2000 Professional to allow incoming
connections to a specific port (4747)? I've been able to
find directions for Windows XP, but they don't seem to
apply to 2k Pro. Thanks in advance.