This hack work at 100% on any eathena update at this day : 05/24/2009
How does it work :
1) Go on RO
2) go to your mail box

3) Write a new letter and put in as zeny as you can (do not valid yet)

4) Launch WPE Pro
5) Target your RO client
6) Clic on play button
7) Valid the amount of zeny on RO
8) clic on stop button on WPE
9) close the letter box
now9) Search for a packet looking like that :

10) Send it continuously (fix delay at 100 ms)
11) Now you can see your zeny DECREASE

12) Wait until zeny is about -2 500 000 000 and
IT WILL BE POSITIVE !13) Stop the autosend packet and clic on Quit button in WPE PRO
Now, do not log off or use any warp because zeny will be restore. It is only temporary, this is not save in database. So Now, You can spend your money on the map you are. If you talk to letter box or bank, money will be restore.tips : Make a merchant and sell anythings 1 000 000 000 or more , and buy it. then the money on your merchant will be save in database.
This post has been edited by Mandras: May 24 2009, 12:25 AM