Hello Andrey,
thanks for the quick answer.
But there is only a "vcredist_x86_sp1" in that directory. No v2.
(Hopefully it is installed automatically).
Another question:
Is it possible, that the DLC download (...summer...) from gamersgate is not working for me, because engine 580 is not installed ?
At the moment it is not possible for me, to install it with version 577... via the normal procedure.