Thanks to hayc59 at Calendar of Updates
Adobe Shockwave Player v18.104.22.168 Released
Release Date: 11.23.2015
Download: Adobe® Shockwave Player
Download: Adobe® Shockwave Player (Other Versions)
More Info: Version Test
Caution: Many companies are adding or bundling prechecked offers of other software with their installation processes.
UNCHECK any unwanted, prechecked software installs that may be offered.