>but I can't figure out how to tell it one parameter *depends* on another.
Create your parameter set, then set the few that depend on each other to be mandatory? There are some neater things you can do with compiled code, otherwise you sometimes have to do more exotic validation after the param block... jlc ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to listmana...@lyris.sunbeltsoftware.com with the body: unsubscribe ntsysadmin