I'm not sure if the original documentation mentions it either. When I first installed the software, it kept giving me errors and wouldn't install. So I disabled the firewall, and then installed it, and it went in fine. -----Original Message----- From: Ara [mailto:ara@xxxxxxxxxxxxx] Sent: Monday, April 11, 2005 20:33 To: [ISAserver.org Discussion List] Subject: [isalist] RE: surfcontrol build number http://www.ISAserver.org Unfortunately I did install. Their document on service pack doesn't mention that you have to disable firewall service, so I guess some thing is wrong with mine and have to apply service pack one more time properly