It is very convenient program to change the system message, just change their color.
It supports clients from C3 to Kamael.
Instruction
1. In your game folder, the folder file system is systemmsg-e, copy it to a folder Heisers Sys Editor.
2. Starting the file L2 modder.exe
3. Then in the File menu, click on Load Messages. (download the list of all messages)
4. After each modified line press Save Text / Colour
5. And that would save all the changes, go to the File menu and click on the Save Messages.
6. Then copy the file back systemmsg-e in your folder with a game in a folder system to the replacement.
This is posted by alekssu enjoy :)