This release is the "Enhanced" version of King's Quest. It uses the Sierra's Creative Interpreter (SCI) engine, the same engine used in titles such as King's Quest IV; while it still used 16-color graphics, it featured twice the resolution as well as music card support instead of the PC speaker...
You can contribute to this game (King's Quest I: Quest for the Crown - Enhanced version) at OldGames.sk, by upload your own review, game info/description, or screenshot.