Title really says it all, and with the client being 64-bit now what is the limiting factor on why this almost 20 year old game not using more than 2 threads of a system? i don't expect you to write the application to use 16 threads but at least 6-8 which is what most people have now a days. it will also let the CPU relax while the GPU takes over more of the workload improving the performance of the game while also letting people like me who love a beautiful game to run at max settings shadows and all.