Trying to open .cxt files. Searched "Director" and Adobe link for Director 11.5 would not install.

I am trying to open .cxt Files

I tried contacting support and I downloaded 11.5 of Director. 

I hit quit, and am prompted to install with compatiblity mode. 

Result: please contact {Adobe} to see abotu the validity of the installer. I checked certificates etc and everything looked okay to me. 

Is there any way to make this work or at the least, open the .cxt file somehow?

Thanks for your time!