Jambock

Thanks! I was all this time waiting a shortcut or a link (after hit the play) as i had seen in many Screenshots. So in the end i simple have to play arrowhead after instaling everything. I have looked and the DLCs appear there. Thanks for all the help.

Yes i understand it, but it doesn't work automatically (at least the ArmaII CO option dont appeared) so because of this i tried again to use the _runA2CO.cmd as a last try and as i said it dont worked too; this last time i've done this only after i be sure that the game don't have recognized the ARMA II folder (or something equivalent). And this is my problem, it doesn't work using or not using the archive. So in resume: I launched Steam with admin rights, installed Arma II, played ARMA II (with admin rights) for some time (10 to 15 minutes), then i installed ARMA II Arrowhead, played it (with admin rights) for some time (10 to 15 minutes), and then i tried to see if the option of the CO had appeared, it did not. I shut off Steam, opened it again and still no CO; so then i tried to use the archive (both with the Steam program open and with it off) and still no CO. I already unisntalled and reinstaled the games a dozen times and i simple don't know what to do anymore. Understand the problem? It seems that the Arrowhead doesn't recognize the ARMA II or something. As i said i already tried all the "workarounds" and solutions i found in the internet and nothing. I will try to reinstall everything again and wait for a "miracle", maybe it is Steams fault but it simple doesn't work.

Done everything you said, now when i use the _runA2CO.cmd the game opens and all the games/DLCs appear as icons on the left of the screen, but stills no CO on the normal lauch on steam; and no servers on the multiplayer... What could i have done wrong?

Tried to do it again (hours of download for a fresh install), played AII for more than 30 minutes, then downloaded AH, played it for approximately the same time but it seems that doesn't worked. Then i tried the archive on AH folder and nothing too, no option to launch CO, ive do it with all the EXEs with admin rights. What am i doing wrong? And just to be sure, they are in the same install folder of Steam:

Same problem here, tried to install, re-install; tried all the "workaround" i found in the Internet but no A2CO to me... I have bough the Steam ARMA 2 Complete edition.