Absolute HD 2023 is a mod for Stalker: Shadow of Chernobyl, bought to you by the same people developing Stalker: Singularity (SIN). Absolute HD is designed for the purist who wishes the game were modernised with true remastered HD textures and very few other changes.
Minor patch fixing a few visual issues and improving render quality slightly.
Google say's its a virus, I'm sure its not actually one but you might wanna look into why google is flagging it as such.
Google being retarded, there's nothing in there except texture related stuff. Who is hosting this on google anyway moddb is the ONLY place I have uploaded Absolute HD to.