Find any hex editor, with search by ASCII abilities ..Example Hex editor: Free HEx Editor XVI32
Client side:
Open ..\LineageII\System\Network.dll (Engine.dll for C2 or C3) go to 0x41138 or find by ASCII string "-%&@!" (without quotes):
There we see "[;'.]94-31==-%&@!^+]", it is full, default auth key for LineAge2 C1. In order to login to your server you have to find the exact key.An example of these keys can be found in L2Walker's Folder "token.wp" at ts= bla bla. Copy and paste one of these keys to your engine.dll and test OR if you already can login to server with L2Walker, copy-paste the "ts" Hex numbers to your engine.dll.
Note: if you edit l2player's engine.dll you will find with your hex editor the word "E.X.C.E.P.T.I.O.N." instead of "[;'.]94-31==-%&@!^+]"
If you use XVI32 click Ctrl+G and put in decimal this: 6087300 .At the right you can see the Encryption key, at the left there is the Hex part (similar as "token.wp").
auto ennoo kano oti leei o war kai den ginetai tipota den iparxoun ta parapano. oso gia to pe compact2 i moni epilogi pou exei einai to compress den mporo na do pouthena tin entoli unpack or uncompress gia na kano unpack to engine.dll