Back in the bad old DOS days ANSI.SYS was a common loadable device driver included in the CONFIG.SYS file, which basically simulated an ANSI terminal. It was used by many programs as an easy way of cursor movement, color management, and keyboard mapping.

The keyboard mapping was actually an incredibly bad idea, because it meant that simply displaying a file which contained rogue keyboard macros could do tremendous damage.

Log in or register to write something here or to contact authors.