darkhairedirish

Sadly, that didn't solve my problem but thank-you for the effort. When I ran them separately they worked fine. But when I ran combined ops, it starts up command prompt, which closes so fast I can't read it, and the Steam "Preparing to launch Arma II: Combined Operations." If anyone can tell me where to find what the command prompt says, I'd really appreciate it.

Me and a few friends decided to get Arma II and Arma II: Operation Arrowhead to play DayZ. All four of my friends got the mod working but I can't seem to get it to launch combined ops. I recently acquired it through Steam through the Arma X Anniversary Edition. Then I ran the game, both Arma II and OA then installed DayZ. I couldn't get CO to run even without DayZ. I tried re-installing everything multiple times, running in administrator, reviewing file integrity, and looking around on the forums for help. Which is now what I'm asking anyone reading this for. Thank-you in advance. EDIT: This is my fix, I had to do the second one. 1. Exit Steam. 2. Right-click on Steam icon. 3. Left-click on "Run As Administrator". 4. Run Arma 2. 5. Run OA. 6. Now try to run CO again. If that doesn't work, please re-install Steam: 1. Go to Steam's installation folder. 2. Delete everything there except "steam.exe" and "steamapps" folder. 3. Run "steam.exe" - Steam will reinstall itself automatically. 4. Continue from step 1 of the previous how-to.