The website where I found this link also mentions that this version is protected by StarForce. :(:(:( So, don't rush to download it if you don't know the key or how to bypass it.
It's better not to look for such links to the "beta/demo of Heroes V." Wait a little longer – the OPEN beta testing will begin at the end of January (when anyone who wants to can freely download and play the beta). :cool:
