http://download.threerings.net/yotools/tools-install.exe Mac: http://download.threerings.net/yotools/tools-install.dmg Linux: http://download.threerings.net/yotools/tools-install.bin It will install to C:\Program Files\Three Rings Design\Yohoho Tools\ by default on Windows machines. Being that it is written in Java , it will also work on UNIX systems, Macintoshes, and any other system capable of running Java with graphics. For a general overview on operating