Ok, I have been struggling with this for a week now. The question: What do I have to set up on the ISA server side to allow clients such as WC-FTP32 and CuteFTP to work through it? What are the settings for the client? Proxy OPEN? On the ISA side I have (well I think I have) enabled FTP. Even set up a Proto Def that has a secondary of port 20. I have two servers I am testing with. One is Integrated and one is Cache Mode. I know (to an extent) that FTP works as far as the server is concerned because I can FTP through IE 5.5 and 6.0. Any help would be much appricited!