For some reason at some ppl the dll don't work cuz of their Anti-Virusprogram.
Well, I use Avira and it works very well.
Download:
http://www.chip.de/downloads/AntiVir-Free-Antivirus_12998486.html
You should try download this.
It should work then.
[Delete your old Anti-Virus Program then, before downloading new.]
REPS?.<3