Ok i am goiong to see if i can help you with this one, First thing is you need to get the client goto
To view the content, you need to sign in or register
and download the full client, ya it's about 1.3Gigs
Next When thats all installed you get the server files I get these from the L2J Team here is the addy
To view the content, you need to sign in or register
Just put this in a folder on the Desktop for easy access
Next you need to run convertdata.bat this will create some data files from the client, It will ask you the L2 dir which is C:\Program Files\Lineage II
In a command prompt run ipconfig and write down your IP adress since your on a lan it should be 192.168.*.*
Ok This is where you are hanging up i think in this part you will run updateini.bat it will again ask the install directory and then ask for the server address you would use The above IP Adsress This bat file changes the L2.ini file in your Lineage folder so the client will connect to your server.
Copy this L2.ini file from you Lineage II/System Directory and put this on your desktop, This file you will give to all your friends to use in there Lineage II/System folder, Next run that updateini.bat again this time use this adress 127.0.0.1 it will change it in your client to connect to the LOCAL server..
Make sure you edit the server.cfg file, Internal host would be 127.0.0.1 external would be the ip you wrote down.
Run startserver.bat and connect with the client
If you have any other questions feel free to send me a msg over msn
[email protected]