Hi
Remember the Atari St version i played this years ago along with the other Icom four games.
Version i have now is the windows 3.1.I say any version because i'm not shure if this appiles too all.
"the black hole": A few people have tried find a way too use it with no success so far. All i know this game files are encrypted and game likes order in everything.
http://en.wikipedia.org/wiki/Uninvited_(game)
Look under the "discussion" tab.