Not reproducible here. (I use IFTP and a path to upload the TCMD installers to the web site.)IFTP seems to ignore the path portion of the command line.
V16 goes to the path defined in the command line while V17 goes to the default directory of the user logging on.
IFTP /? is not supposed to show all the possible switches, just the commonly used ones.Also, "IFTP /?" does not show all the possible switches.