sometimes I find folders in admin folders also.
I have 2 versions of RH on my laptop both use their own registry and can operate independently as long as not being used on same printer at same time. some say the newest versions of RH cant and had to delete/uninstall old versions. thats why I havnt installed that ver yet, as I like having choice since sometimes I dont want to be forced to use all the new addons each print like pre scan objects loaded with Netfab. and I saved my Slic3r presets also to put in new Slic3r/RH folders. I use ver 85b for prints I have done b4 or easy prints, and ver 95f for untested prints. if the newest versions could be used this way I would install it and try seeing how I like it. Im just an old dog that dont like spending all my last years learning new stuff b4 I even learn how to use the last ver. LOL my 2 sons make fun of me for doing that with my puter stuff. they love backing up, reinstalling all new on latest hardware monthly. takes me years b4 ready for that.
Solidoodle 2 with Deluxe kit cover & glass bed with heater. and 2nd board SD2 used not 3rd and alum platform not installed yet still wood. also need cooling fan installed to board. use Repetier Host couple vers. Slic3r also have all free ware STL programs