running 2 or more maplestory

pretty much this.

I don't have the best computer, but I can run 2 maples just fine with no lag.

Well the question is HOw do u do this,(have more then 1 maple client)

Just make multiple windows accounts. You can open a Maplestory client on every Account. You don't need a good computer for this, I have a crappy 5 year old computer, and it works fine, except for lags (FPS lags)

Will this effect my computer anyway negatively? Like when im not playing maple? like the other accounts takin my Mem(even if they arent on) And 1 more thing, can i have like 3~5 maple on my comp then? im sure ill have a good comp that can support all that.