Dodian has fixed most of the known dupes. It is highly unlikely that there will be another dupe on the Dodian Server anytime soon.
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http://www.rune-server.org/runescape-development/rs2-server/downloads/31937-uber-3-0-dodian-source.html
I dupe by going to the wildy and i press control alt del sadly it does not dupe rares
You can't
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.