You can see there start button in WPE, when you click it, the program will start to catching packets from game. There you chose your ragnarok process in Target program. You run Ragnarok, enter the game with your character then click alt+tab and run WPE PRO. Wpe Pro 1.3 ManualThere is tutorial how to use WPE, but i try to explain some things to you. With WPE you can catch your packets and change them for making something or just flood with them, just click to send them many times at 1 second.
When you play this game you click somewhere or do something and Ragnarok send packets on server, then server send them beck to you and you see that you was doing. This program is for catching packets from Ragnarok.