How To Play In Windows XP
It took me a couple of days to actually get this game working in XP but I finally did it and it's really simple.
If you've installed it in the past, uninstall it.
Then, put the CD in the drive and when it says that "Phantasmagoria isn't installed would you like to install it now?" select yes.
During the installation when it asks you to test the configuration, DON'T. Otherwise it won't play at ALL.
After that, you should be playing in no time.
Good luck!