Hi Lquan, thanks for your response. I am currently not having any issues with running multiple instances of Earth & Beyond. My issue is I can’t recall how I was able to get AC Tool to interact with the different running instances of the game. I used to play 3 toons and had macros to Target assist firing, shield recharging, etc. I can’t remember how I was able to determine what game window I would be sending key commands to. I do not remember what I did. A few guesses would be that I was able to change the windows name by alt clicking right or left and changing there. Or it could of been a command line in command prompt. I just do not recall. If I would lean towards one way or another it would be renaming the window with a click command or something. I am pretty sure somebody has help me in the past, either I read it on the forums, somebody multi boxing told me in game, or other.