Old Allegorithmic Plug In for 3DS MAX

I have been working on old 3DSMax tutorials during the recent LockDown and I am currently working on Material Editing and Mapping - came across 2011 Tutorial introducing Allegorithmic's plugin which was then available for Free as an Add On.  Have been on Chat with Adobe they only support plugins for 2018 and above. I have a legacy version of Autocad Design Suite 2016 . Adobe Chat has advised I look for old Allegorithmic Plugins for 2016 [and presumably earlier versions 2015 and back]. 

Can anybody help//direct me to a source?