Just a quick note to say that if you have a SBS customer who has some PCs with Vista then you will need the updated ISA firewall client. You will need to go to this page - ISA Server Firewall Client Firewall Client for ISA Server Brief Description Firewall Client for ISA Server installs the Firewall Client software on 32-bit and 64-bit computers running supported Windows operating systems. It is also worth noting that the install script will look something like this \\Servername\shared folder\SETUP.EXE /Q /P "SERVER_NAME_OR_IP=Servername ENABLE_AUTO_DETECT=0 REFRESH_WEB_PROXY=1" Note this will almost certainly force a reboot due to the changes in the Winsock stack. ttfn David Technorati Tags: ISA , ISA Firewall client , SBS , SBS Premium