Where is face recognition for windows

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First off I?m a windows user so don?t say get a Mac. I saw the commercial about IPhoto and how it could search through all your pictures and tag them for you with a persons name. We already have hundreds of photos of the kids and normally don?t go though each one and tag it after we upload it to the computer. I?ve read about Google?s Picasa having face tagging, but that?s only for the online web albums. I want to tag them locally on my PC. I?ve looked but having found anything for windows that would do it. I really like Windows Live Photo Gallery software and I’ve used Adobe elements before, but right now neither of these products will do auto face tags.