I have been using this program to for about 2 years or so and it is invaluable. A great suggestion for those on a LAN or Wireless to resolve the their true address. I also use Tcpview. TCPView for NT/2000/XP/9x
Copyright (C) 1997-2002 Mark Russinovich
Sysinternals -
www.sysinternals.com which I couldn't do without as well. It's freeware on said site. And Active Ports v1.4 which I think may no long be available from ntutility.com. Nice work maverick!