Danhoc 1 Posted May 20, 2014 (edited) I download Beta Patch ArmA2 OA 112555. When install it, I got error "ArmA2 ACR is not installed on your computer...". I bought game(ArmA2 & ArmaA2 OA) in Steam. Steam installed on disk C, but game and Day Z Commander on disk D. How install this patch? Edited May 21, 2014 by Danhoc Share this post Link to post Share on other sites
kingbritain 63 Posted May 20, 2014 Hit install through DayZ Commander to the newest one (probably will say stable). Share this post Link to post Share on other sites
Danhoc 1 Posted May 21, 2014 I fix this problem.1. Open common/ ArmA 2 Operation Arrowhead2. Open _runA2CO.cmd in text style.3. Find next: :runs"%_STEAMPATH%\steam.exe" -applaunch 33930 "-mod=%_ARMA2PATH%;EXPANSION;ca" And change::runs"%_STEAMPATH%\steam.exe" -applaunch 33930 "-mod=%_ARMA2PATH%;EXPANSION;ca;ACR" After I start _runA2CO.cmd how administrator and restart computer. Start Steam how administator and start Day Z Commander. All working now. 1 Share this post Link to post Share on other sites