On Guard is desktop security for Macintosh computers. It adds
protection to the Macintosh Finder to prevent users from moving,
trashing, or renaming files, using control panels or the Chooser, or
accessing files in certain folders.

Compatibility
Architecture: 68k PPC

On Guard is compatible with Mac OS 7 through Mac OS 9.x and works on
all Macintosh models (in 2001). It is compatible with all Macintosh
networks (LocalTalk, EtherTalk, and TokenTalk), as well as Macintosh
computers connected to networks which support AppleTalk (such as
Windows NT and Novell NetWare networks).