The version I am trying to install is the latest version on the website (23.0). I downloaded and "installed" once again and the same thing happened. I get the message that it installed successfully but there is no evidence of an installation on my system. I am not just looking for an icon on my desktop. There is nothing on my C:\ drive and no Air program visible through my control panel. I also tried running .air app and received the message below. Two months of trying now. Probably time to give up.