here is a command line Im using in a project Im working on right now.
HOST('START ftp.exe -s:c:\temp\ftp.txt', no_screen);
But, My HOST commands work fine while Im working with developer... but when I move my 6i form to the 9ias server, my HOST command seems to stop working.. Im guessing there are some problems with the HOST command when running web based forms, but I havnt gotten that far yet...