The default location for the WolfQuest Setup installer is in /My Documents/My Games/, and that works best on most Windows computers. But occasionally it triggers this error. Please try running the 'WolfQuest Setup' again and this time, install the game in /Program Files/. It may work just fine then, or you may need to right-click on the WolfQuest game icon in Program Files/WolfQuest, and then choose 'Run as Administrator' the first time you run the game from there. Subsequently, that should not be necessary.