Hello, I was having some problems launching ArmA 2: Combined Operations from Steam, I searched the web looking for a solution but there was nothing that solved my problem. I decided to take matters into my own hands and fix it myself using some good ‘ol DOS knowledge.
Here is my post from the ArmA forums:
I was having a slightly different problem which I managed to resolve myself after thinking about it. I knew my knowledge of DOS would one day come in useful
I screenshot the command console window that popped up for a split second when running combined operations, the error I was getting was: “‘REG’ is not recognized as an internal or external command, operable program or batch file.”
Screen shot: http://i40.tinypic.com/mh63xh.png
So I started looking for reg.exe and found it’s location and then edited the “_runA2CO.cmd” batch file to include the location of the reg.exe file as there is obviously a registry issue with reg.exe on my computer. And so I replaced everywhere where it says “REG” to: “C:\Windows\System32\reg.exe”, and it seems to work! This is the only change I’ve made but I hope it helps some of you.