This is a quest sharing exploit, where you need to find items and turn them in for rewards. You will basically dupe the quest items which need to be turned in, gaining you the rewards for turning them in. An example would be gaining unlimited amounts of Damaged Necklaces.
Note: You will need 2 accounts, with preferably 2 level 85′s, one on each account. You will need to use Cheat Engine.
For US customers, hooking the WoW Process, could result in a suspension or ban, do this at your own risk. This works fine however for EU customers.