Multi clent at the same time?

How can I run two combat arms clients at the same time on one pc? ty

Why the Fuck would you want to do That?

farming, and i wanna try out some shit e.g. shootin trough walls ect

No its not possible, First your computer would have to be able to handle running 2 combat arms at the same time. Need at least 4 RAM +. Also nexon blocks it because all it does is check to see if CA is already running and if it is then they say Please shutdown the client and try again