This seems to be a legit application used for 3D rendering, which seems to be what visiblebody is.
http://www.castlecops.com/atxlist-1482.html
http://danceliquid.com/games/whatIsAnark.html
http://www.castlecops.com/atxlist-1482.html
http://danceliquid.com/games/whatIsAnark.html