Thank you Andavari,
i was confused by name with two dots (periods) .... thought there was a ZoneAlarm cmd line command (ZoneAlarm) where u specified file to act on (tvDEBUG.log) and the bat file (Emptier.bat) that performwed the4 action.
do you know if their's a bat/script for win XP 'shutdown' that i could put a ref to the bat in ... then the 'delete' of the log file would automatically be done at shutdown time?
thanks again!