Moo has suffered a fate similar to XOptimize's, the app it copied: it's no longer available on Versiontracker, and not from many web pages that link to it--their links are dead. Don't know where to find it. However, other current utils like Cocktail, etc. do prebinding. XOptimize, if you were curious to take a look at it, I found buried at http://www.codefab.com/unsupported/, where for some reason it's referred to as both version 0.1 and 0.42. You'll find other web references to a 1.0 version, and even a 1.0.1 version--even Bill Bumgarner, its author, refers to a 1.0 version--but the last version was 0.1, as shown in its About window, and by doing a Get Info on it from the Finder.