No, it works in BG as well. If you've installed BG to c:\program files\baldur, any screenshots you make in-game by pressing the Print Screen button, screenshorts will end up in the newly created c:\program files\baldur\scrnshot directory. You can open them with paint, by browsing to that directory, or open them by going there usig my computer and they'll open in whatever program you've set as a default for files like that