You can crypt your client with a LZO-Key...
PHP Code:
Standart LZO Keys (in Hex):
Code:
LZO1: B99EB0026F69810563989B2879181A00
LZO2: 22B8B40464B26E1FAEEA1800A6F6FB1C
Item_Proto: A1A40200AA155404E78B5A18ABD6AA01
Mob_Proto: 467449000B4A0000B76E08009D186800
Change the order, but you have to use hex-decimals!
Then open your unpacker with HEX-Editor an search for:
PHP Code:
LZO1: B99EB0026F69810563989B2879181A00
LZO2: 22B8B40464B26E1FAEEA1800A6F6FB1C
Put your new LZO in this!
The same with the metin2client.exe
You must unpack every pack file with the unpacker and pack them, after you unpacked them!