Thanks goodness, viruses are rare in Apple II software, but there are some floating around. My favorite virus checker is from Morgan Davis (for some reason the name escapes me, Virus MD?). There are several others out there. Exocisor by Vitesse(?) comes to mind. Deverminator's another. As far as I know you can't UnShrink files on a Mac. If you can I'd like to know how. -John