UnF: If I'm correct, the replacement file for the DVD version you've linked is the same that's used by Gog. It's really good news: thanks to Revolution Software & Gog, we can finally play without issues, either with DVD version or with Gog's one (straight install, as it comes fully patched already).
yes revolution did a digital version for gog & then with the problems with mutliprocessors they did a patch . I think originally it wasn't patched as gog users still had a problem with the exe file. I think gog should have listed it somewhere that the exe file should be re downloaded.