Adobe Product Key Finder
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Full user review
"Not free to try"
They claim you can use it free but you can not. You can download it for free but you can not actual see the keys without paying the fee. Of course there are no positive reviews to state that this works after you pay so it's really a scam.
Useless unless you are willing to pay for potentially bad data. There is a reason that it has a high download and low review.