Description: AppleLink for Apple II: Not ProDOS-Based Header: AppleLink for Apple II: Not ProDOS-Based This article last reviewed: 10 September 1987 AppleLink for the Apple II is written in UCSD Pascal, using an operating system that is not entirely compatible with ProDOS. AppleLink is ProDOS-compatible, and you can load and save ProDOS files, but you can't install AppleLink on a ProDOS hard disk. Keywords: