Have a client that has upgraded to ISA 2004. I am uninstalling the ISA 2000 FW client for the workstations and installing the ISA 2004 FW client. On one workstation, the 2000 FW client uninstalled using setup_a.exe and remove all (what I am doing on all) and restarted. Upon restart, went to install the 2004 FW client and it stopped saying must uninstall previous version first. Well, it is uninstalled. When I tried to reinstall the 2000 FW client (from the SMS package folder) it complains that there are files missing. (Well gee, because the ISA 2000 server no longer exists.) Any one have an idea of how to resolve this? My guess is the MSI information for the 2000 FW client did not completely remove in the registry, but I do not know where to look or for what keys. John T eServices For You