It's old and obscure I know, but I was playing a PC game demo called Hurrican earlier (you can download it here, http://www.poke53280.de/download/categ.php?cat=1 top download link, if you want to test it yourself) and up pops a message about the file 'Hurrican Preview.exe' containing something called Rbot.skp. This is news to me, since I've had the demo for years and years and have no problems with either it or my system generally. Any chance you could have a look? I really do think it's a false positive.
I use Vista x64, though I doubt that makes a difference. Latest version of Spybot and its definitions.