Cara Guna WPE

1. Download WPE and extract it.

• Before downloading, make a sure to disable your anti-virus as it can mark WPE as a virus and delete it. Download at your risk, we will not be resposabilized if your computer crashes.
• You will need some programs to extract it, the common ones are WinRAR and 7zip.

2. Open your ragnarok but don't login yet! Leave it on the login screen and open WPE.
3. At WPE's window, click on Target Programs button.

4. A window will open, search for the server's executable and double-click it.

Note. Some servers "hide" their executables by renaming it (like from xxxRO.exe to xxxx.dll or xxxxx.bin), so don't worry if the executable isn't a .exe one.

5. In the WPE's window, click on Play button.

6. Switch to your Ragnarok's window, put and try to login.

Note. Valid login information are not needed.

7. Back to WPE's window, click on Stop button

8. A window will open with recorded data. One of the packets sent to the server would be login packet which usually contains the server's version, master_version, IP and port - write them down because they are going to be used later. The packets will be different on each server, possible login packets may start with 64 00 or 02 B0. Other packets (such as 18-byte-long 02 04) may be sent before login packet.

Legend:

1. version (displayed as 4-byte unsigned number in little-endian, in hex)
2. IP (as is)
3. port (as is)
4. master version (displayed as 1-byte unsigned number, in hex)

9. See Converting Hexadecimal to Decimal numbers to convert the master_version and version before configuring Kore.
credit to OpenKore