This patch allows the single language version of Myst III: Exile to run on Mac OSX and requires your OS to be version 10.1. Extract the application into the same location as your old app. If you use shortcuts, you will need to create a new one. If you wish, delete the old application and its Bink Shared Library file. Remember, you can only run Myst III in the OSX environment with the special Myst III OSX application and with OS 10.1.