I don't see any options with what came with WinXP(contracted from Roxie)to use iso. I'm not sure(as I don't have it installed right now),but I think my Nero program does have it.I know my Win/Ace programe I use to open rar files,does handle iso. I'm not trying to fix something that's not broken...just trying to find out what(if any)advantage makeing an iso copy of a programe has. Curious SWAMP