I am running ISA Stadard Edition in Integrated Mode. I am running daily reports and noticed an unknown user. So under the Out Going Web Requests Tab I checked the box to Ask Unauthenticated users for Indentification. Win2K Pro clients go right in without any problem but Win98 clients are prompted for credentials whenever they open their web browser. Is there anyway to allow pass through authentication for them? Sean Faust American Red Cross Atlanta Chapter Office (404) 575-3123 Cell(404) 909-0778 sfaust@xxxxxxxxxx