I needed to download the CADmep object enabler to see some ductwork on a file I was given. I downloaded the 2016 version, however when I try to use it, the file is not in the folder where I installed it. There are a bunch of nonessential folders, e.g. setup, CER, Eula etc, but no actual .arx file that I can run. I tried to reinstall but when I get to the installation screen the install button is disabled. I installed the 2013 version and had the same problem where the application file is not there. 

I am a new autocad user and may just be missing something obvious, but I couldn't find this question previously answered on the forums here. Thanks