Error launching unity player.Failed to load unity dll.

Hello. I try to play one game on Facebook. It’s called IAmPlayr. I’ve played it before on the same computer.Before 2 weeks i re-install my windows and after that this problem appear and i can’t fix it. First i ask the game manufactures and with their help i try some sollutions but it didn’t help. I update my video driver to latest version, install full version of unity player and still no change. They redirect me to you, so i hope you can help me. I attach pic with what my problem is. Thank you in advance.

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One of the possible causes is SSE2 instruction set enabled in the latest builds while you are running a non-SSE2 CPU. More detail at http://forum.unity3d.com/threads/142411-Error-Launching-Unity-Player/page4 . Until the developers fix this (if ever), the interim solution is to use the workaround posted in that topic, namely revert to version 3.5.2f2.