Create a rename.bat file.
Write this in the rename.bat
PHP Code:
ren *.eix *.tga
ren *.epk *.wgh
Mark all files in the pack folder and put it on the .bat file.
Then open your extrator with HEX-Editor and search for: .eix / .epk and rename them to .tga and .wgh
Then open your metin2client.exe with hex and do the same.
I hope I could help you.