I want to get rid of the HUD to make nicer screenshots, Finally, I found this Mod. How to install.txt says: "Simply drop all files where the game.exe is located." but there is no game.exe in GOG Games/Deus Ex HRDC. There is only DXHRDC.exe.

So is GOG Games/Deus Ex HRDC anyway the correct dir?

Or is the mod not suitable for the Directors Cut?

DXHRDC.exe is the games EXE file. So drop all mod files where this file is located.