Problem launching Arma 2 OA

[OWDz 1]

I got one of my friends to purchase Arma 2 CO to play DayZ with me, I showed him step by step how to install Arma2/OA and the mod itself. He can run Arma 2 to the title screen just fine but when he tries to launch Arma 2 OA/CO nothing happens. Because of this he can't play DayZ, I've had him Verify integrity, defrag, and reinstall OA altogether, and still, nothing.

[gambla 118]

You need to start the Arma OA exe, not the Arma Exe. The ArmaOA exe needs to have the "-mod @DAYZ" in the startup parameters. I recommend Six Launcher for installing DAYZ, makes it very simple.

[OWDz 1]

DayZ isn't the problem, launching Arma OA for first time setup etc is the problem.

[gambla 118]

Please be more precise. First you wrote he can't play DAYZ, then that it's not the problem. Have you been in the Arma install folder and started a A2OA exe w/o the DAYZ mod ? What OS is he running, try start as Admin e.g. After clicking the exe, is the process shown in the taskmanager ?

[mic_andersen 0]

Run steam as administrator, that is if he uses steam