@ Will I AM you can use Poser 12 for 21 days without a Key. Just click the continue button without filling in any of the Key information. I believe you have to put in your name and e-mail address. The rest can be left blank.

Poser 5, 6, 7, 8, Poser Pro 9 (2012), 10 (2014), 11, 12, 13