Thanks for getting in touch.
I'm (kinda) sorry to say that TuneSpan is for OS X only.
Other than not personally being a Windows developer, a TuneSpan-like app would be impossible on Windows because the Windows version iTunes doesn't have the AppleScript support that the Mac version does.
Other than just copying files, TuneSpan sends an AppleScript command to iTunes to update the location of each track.
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