I am confused as to why you would do this? If this Unix machine is the Netbackup master server and you have access to it via telnet - why don't you just log on and use robest interactively instead of trying to run a script from your win box? Not sure if you are wanting to do the same thing with robtest ever time but if you are you could just run the script on the unix box in cron and have it notify you if there is a failure. Are you using this to see if a tape is stuck in a drive or to move a tape?