Creator codes make a comeback in Snow Leopard with LaunchCodes
In Mac OS X (and back into OS 9 history), a creator code is a hidden value attached to a document and bound to a preferred application, allowing the OS to know which application to use for opening that file. This is particularly helpful for filetypes that have multiple valid ‘target’ apps (JPEG, PDF, etc.); the creator code lets Preview ‘own’ its PDF or image files, TextEdit automatically open its text files, and so on.
Those who are familiar with the process are already (painfully) aware that Snow Leopard ditched this system a while back (some great details at Ars Technica). For many users — especially Windows switchers — the new method is an improvement, allowing a more standardized response to double-clicking a document file that’s driven by the file name extension (.doc, .html, and the like). If you’re in the former group, though, and missing your creator codes, the developer behind PageHand has a treat for you: LaunchCodes.
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