as far as changing every client , No you can change the listening port on ISA server to port 80 -----Original Message----- From: Athanassios Vamvakas [mailto:athvam@xxxxxxxxxxxxx] Sent: Friday, December 07, 2001 2:11 PM To: [ISAserver.org Discussion List] Subject: [isalist] ISA's Web Proxy Configuration http://www.ISAserver.org This is a multi-part message in MIME format.