ArmA 2 OA CD Key Changer

If your CD Key ever gets banned, and you feel the need to change your key either edit your registry by starting regedit in administrator mode and navigating the to the following keys:

HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Bohemia Interactive Studio\\ArmA 2 OA\\KEY

HKEY_LOCAL_MACHINE\\SOFTWARE\\Bohemia Interactive Studio\\ArmA 2 OA\\KEY

The problem it is stored in REG_BINARY, so we have a small program for it. This program also displays your ArmA OA CD Key in case you have lost it and need to save it for later use.

please more detailed information in ur post. Your making it hard for people to understand how to use it. There is no readme file either, so explain plz

Hm. You cannot change your CD key to a valid CD key - Impossible. All CD keys are given out after payment, they're uniqly coded and only your specific code with activate ARMA: 2 / OA. All this will do is return a 'Wrong CD key was given in Setup'. To me, seems like phishing.

ok this does not work .

1 DAVE 84311 very well said .
2 it does not work , once you start the game it outs the code in your registry.
3 the only way it can work is without steam.

Confirmed to work with Steam Version, run "_runA2CO_beta.cmd" instead of the game itself and it will not switch the CD key back. (You still have to use a legit key)


Furthermore, this is not your work Helper, I saw this in UC created by user inf1kek, please give credit where it is due.

I need to buy another, key got banned any places people recommend?

I need some help here.

I downloaded ArmA2 Combined Operation initially through torrent and I purchased OA on a directdownload website. I used this Key Changer before and it worked well and I was able to swap in the legit key I bought to play DayZ. I was recentlly global banned and I just bought another key for Operation Arrowhead. However this time when I tried to use this key changer it doesn't work anymore. The DOS window would simply close after I input my new cdkey. There was no error message, no prompt, no nothing. The window just closed without changing the key at all.

After some trial and error I think it seems the Key Changer can't take in the letter "Q" or letter "U", and my CD Key contains the letter "U". This seems very weird. You can try it out by putting in some random string with any of those 2 letters in it and see if it works.

Could someone please verify this? Any assistance is much appreciated. Thanks.

Thanks helper , bump as people will start getting global banned as there was a new update.

Hey guys, I bought 3 keys from a guy on here, I tried to use a different program but that didn't work, so he gave me this program with a different code to enter. I right click, paste what he gave me, then it shows the new key (which is identical to what he gave me). But when I click enter there is an error and it says run as administrator. I tried running it as administrator, but it is still the same thing. Can anyone help?

EDIT: Looking at your tut lockdown, will update after i try that (sorry for posting before looking around)

EDIT2: Yeah, I'm still not sure what to do. I'm running as administrator, but it still gives me the error. Can anyone help?
The Error reads: Error opening registry path, run program as an administrator!

Ok i have a new key but how do I get it into correct format.. keep getting errors.



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I'm having the same problem after accidentally logging into steam, I'm trying to re enter my new key, but for some reason I keep getting an error saying:
Error opening registry path, run program as an administrator

any advice?