step by step - how to play multiplayer lan server for cod mw2

hello, years ago i remember playing this game with my cousins in multiplayer LAN...
can someone help me with links of what client i have to download and how to setup the LAN game, please?

Luckily for you I love playing on LAN too with my brothers and uploaded a tutorial on how to do so. Check the description for downloads bro, enjoy.

Is this still possible? My friends and I are playing for 5 years CoD2 and CoD 4 in LAN, and now i am trying several things to make multiplayer LAN work but i can't work it out... This is my main problem for 5 days, please help me