I just want to recap on the info at www.grc.com regarding closing ports; please comment and correct me if needed I connect to the Net using a 56K dial-up modem and standalone PC. The only Network Components I need are TCP/IP and Dial-Up Adapter. Because I have Win 95A I need to either: delete vnbt.386 OR rename vnbt.386 OR move vnbt.386 out of C:\WINDOWS\SYSTEM This will then give "Failed to access NBT driver 1" on running "nbtstat -a" in a DOS box, making me secure? I heard as well as "netstat" that "arp -a" is a good command to monitor ports. Haven't a clue what it does though...?