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Hello everyone, I want to share a VI that I recently created to search for orphan files in a (very! ) messy project. As it turned out it's actually very easy to do that (if you find super-secret stuff on the net): This VI will find files (VIs, Controls, Classes, etc...) in your project folder that are not linked by a given top-level VI. This is done by comparing the call-chain of the top-level VI with the files on disk. It assumes your files are in folders relative to the specified root directory. This also means that files outside the hierarchy will be ignored (vi.lib and such). Be aware of (at least) two things: This VI will return false friends if you happen to have any "Open VI Reference" call with constant VI names or paths connected to it (not a problem if you use static VI references). VIs in diagram disable structures are not listed in the call-chain. So if you use conditional (or regular) disable structures this VI will return false friends. Does anyone know a solution to number 2. actually? Hope this proves useful to you too.