Hello, When I'm testing my ISA server using different windows machines W2K of course, I like adding a setting on my dev machines that shows which dev machine I came from in the log by adding a registry setting like the following Windows Registry Editor Version 5.00 [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\User Agent\Post Platform] "Q312461"="" "http://www.Stat-Sphere.net"=""; Where http://www.stat-sphere.net is change that to a string key of your choice Like "JosephDev1" or "JosephDev2" This places a log entry into your log files that help you identify your specific machine and browser usage. Joseph