is THIS
Let's go through the steps:
1) Run L2Phx and login with your character at the server you are willing to try this hack.
2) Using your 1st character drop on the ground 1 of the item you want to dupe (ex: you have 1000 of this item, drop 1 and keep 999 to your inventory).
3) Login with your 2nd character and pick it up.
4) Login with your 1st character, target yourself and click on the item you want to dupe.
5) Go to L2Phx, make sure your 1st character is selected and go to Packet Sniffer.
6) Find packets Action and UseItem, then copy their content and go to Send packets.
7) Paste both of the packets. Now you should have 1 line with Action packet and 1 line with UseItem packet.
8 ) Copy the 2nd and 3rd hex characters from UseItem and paste them at Action packet at the exact same spot.
Now delete UseItem packet entirely.
9) Then click on deposit (freight) and deposit the rest of the items in your second character.
10) Go to L2Phx and send the packet! (Note: you will receive a message in game, just ignore it)
11) Login with your second character and click pick-up.
Tadam! You got the original a-beep-t of your item from the ground. But the thing is.. that the items that you deposited at freight are still there. Just go with your second character at withdraw and you'll see them

. Don't be scared, many steps but i just wanted to make sure you guys get it. It's actually pretty simple.
Don't forget, you can alter many packets (of different items) and send them at once, this way you can dupe multiple items at the same time!
That's all from me, hope you guys will find more servers that this works, also i didn't hide it, because i find it ridiculous that Maxtor makes money from our efforts. I'm sharing this only because i believe knowledge should be shared, rather than kept to some. Good luck!
FROM ::::
http://www.maxcheaters.com/topic/145796 ... able-items
LOG from my server
[22 Set 9:16:43] CHANGE:Mail, item 269819025:Flag(4930296), PrevCount(4382490), L2PcInstance:Masssww[269750996]
[22 Set 9:16:43] DELETE:Mail, item 268710616:Barao(0), PrevCount(752178), L2PcInstance:Masssww[269750996]
[22 Set 9:16:43] CHANGE:Mail, item 269819034:Barao(6769644), PrevCount(6017466), L2PcInstance:Masssww[269750996]
[22 Set 9:16:43] DELETE:Mail, item 268710647:Peniel Adena(0), PrevCount(120120), L2PcInstance:Masssww[269750996]
[22 Set 9:16:43] CHANGE:Mail, item 269866020:Peniel Adena(1081122), PrevCount(961002), L2PcInstance:Masssww[269750996]
[22 Set 9:16:43] DELETE:Mail, item 268710663:Peniel Gold(0), PrevCount(120834), L2PcInstance:Masssww[269750996]
[22 Set 9:16:43] CHANGE:Mail, item 269866144:Peniel Gold(1087548), PrevCount(966714), L2PcInstance:Masssww[269750996]
[22 Set 9:17:46] CHANGE:SendMail, item 269866144:Peniel Gold(50), PrevCount(1087548), L2PcInstance:Masssww[269750996], Mail[269798677]
[22 Set 9:17:46] CREATE:SendMail, item 268714604:Peniel Gold(1087498), L2PcInstance:Masssww[269750996], Mail[269798677]
[22 Set 9:17:46] CHANGE:SendMail, item 269866020:Server Adena(50), PrevCount(1081122), L2PcInstance:Masssww[269750996], Mail[269798677]
[22 Set 9:17:46] CREATE:SendMail, item 268714613:Server Adena(1081072), L2PcInstance:Masssww[269750996], Mail[269798677]
[22 Set 9:17:46] CHANGE:SendMail, item 269819034:Barao(50), PrevCount(6769644), L2PcInstance:Masssww[269750996], Mail[269798677]
[22 Set 9:17:46] CREATE:SendMail, item 268714615:Barao(6769594), L2PcInstance:Masssww[269750996], Mail[269798677]
[22 Set 9:17:46] CHANGE:SendMail, item 269819025:Flag(50), PrevCount(4930296), L2PcInstance:Masssww[269750996], Mail[269798677]
[22 Set 9:17:46] CREATE:SendMail, item 268714618:Flag(4930246), L2PcInstance:Masssww[269750996], Mail[269798677]
[22 Set 9:18:00] CHANGE:Destroy, item 269866144:Server Gold(1087547), PrevCount(1087548), L2PcInstance:Masssww[269750996]
[22 Set 9:18:01] CHANGE:Destroy, item 269866020:Server Adena(1081121), PrevCount(1081122), L2PcInstance:Masssww[269750996]
[22 Set 9:18:02] CHANGE:Destroy, item 269819034:Barao(6769643), PrevCount(6769644), L2PcInstance:Masssww[269750996]
[22 Set 9:18:05] CHANGE:Destroy, item 269819025:Flag(4930295), PrevCount(4930296), L2PcInstance:Masssww[269750996]
[22 Set 9:18:17] CHANGE:SendMail, item 269866144:Server Gold(49), PrevCount(1087547), L2PcInstance:Masssww[269750996], Mail[269798677]
[22 Set 9:18:17] CREATE:SendMail, item 268715197:Server Gold(1087498), L2PcInstance:Masssww[269750996], Mail[269798677]
[22 Set 9:18:17] CHANGE:SendMail, item 269866020:Server Adena(49), PrevCount(1081121), L2PcInstance:Masssww[269750996], Mail[269798677]
[22 Set 9:18:17] CREATE:SendMail, item 268715202:Server Adena(1081072), L2PcInstance:Masssww[269750996], Mail[269798677]
[22 Set 9:18:17] CHANGE:SendMail, item 269819034:Barao(49), PrevCount(6769643), L2PcInstance:Masssww[269750996], Mail[269798677]
[22 Set 9:18:17] CREATE:SendMail, item 268715224:Barao(6769594), L2PcInstance:Masssww[269750996], Mail[269798677]
[22 Set 9:18:17] CHANGE:SendMail, item 269819025:Flag(49), PrevCount(4930295), L2PcInstance:Masssww[269750996], Mail[269798677]
[22 Set 9:18:17] CREATE:SendMail, item 268715256:Flag(4930246), L2PcInstance:Masssww[269750996], Mail[269798677]
[22 Set 9:18:22] CHANGE:Destroy, item 269866144:Server Gold(1087546), PrevCount(1087547), L2PcInstance:Masssww[269750996]