IDwand is the most classic scam ever.

I believe the URL to get it is www.transmuter.com/idwand.zip

Anyway, you tell someone you know a dupe method, but they have to download a program to use it.

Get them to download IDwand, tell them to load it. It loads it up. You tell them to go talk to an NPC to get the NPC's ID. They go talk to an NPC, the program says a message in color like "Getting NPC ID" "ID successful."

K, so now you tell them to come into a trade with you. They come into a trade, you tell them to show you whatever they want duped, they show it to you.

Here's the scam part. Whenever you click the green check, the program makes them click theirs.