Shadaz_B 1 Posted April 23, 2014 Hi there, i have just installed and run arma 2 and operation arrowhead. Steam has given me a product activation key for operation arrowhead. How do i activate it, it says to launch application and then apply key. Where and how? i can't play dayz because whenever i click a server on dayz commander steam says i need to activate my code for operation arrowhead. i tried to do in product activation in the games section but does not recognise. How do i do it? What am i doing wrong? Share this post Link to post Share on other sites