This patch will help you to disable VON (voice over net) what makes the game
crash at 'joining session' when you have a realtek high difinition sound card

How to use:
extract the disableVON.exe to your game folder
open it and select your game version
click 'start game' to launch the game
Normaly the program will go to player settings, disable VON and accept them
After that you can try to join a server if it doesn't work you should go to
player settings yourself and click the VON tab

google

Novahq.net, Downloads, Files, Utilities, Mods > VON Disable Patch

I've been trying to play LW online.  The problem with disableVON.exe, is windows security essentials automatically deletes it.