Adobe CS4 makes use of a license activation system to make Keygens and shared serial-number obsolete by blacklisting them via a central activation server, Surprisingly, smart crackers defeated the whole CS4 activation system using a simple trick, blocking access to the activation server using Windows or MAC HOSTS file.Īfter generating the key using the keygen, users simply need to block access to Adobe Activation servers using their firewalls or Windows HOSTS file, effectively disabling the CS4 licensing system from verifying the registration serial-key.
