2014-02-26 Our Support says:
We STILL have loads of people requesting and searching for a file named Engmod.dll.
From what we have managed to find regarding this file online, it is requested by a "Hack Program" for hacking multiple games. (Brave Frontier, Pet Shop Story). This program is used for cheating.
We have not been able to find a single copy of this file, and I personally doubt, that even if one found the file, it would help you in cheating.
All "downloads" I have found for this file comes with demands. "Like our page", "Share our page", "fill out this survey, so that we get paid".
To me, this feels like a non-working scam program, deliberately demanding a file that comes with commitments.
Surf safe, and do not cheat!