I believe there are none any more but if there are, they wont be worth going on as everyone else will have found this out so you might as well get a spawn server...
Chat with our AI personalities
I dupe by going to the wildy and i press control alt del sadly it does not dupe rares
You can't
Dodian has fixed most of the known dupes. It is highly unlikely that there will be another dupe on the Dodian Server anytime soon.
Check this youtube video about how to dupe in CorruptionX. Heres link below. Hope It Helped!
http://ragnarokcheats.wordpress.com/ might have some good tools that you can use. i'm not sure if a dupe actually exists though.