False positive. Some older game EXEs trigger heuristic detection. Fix: Restore the file from your antivirus quarantine and mark it as an allowed threat. Capcom has not updated the digital signature on this file for years, so security software may flag it incorrectly.
Learn how to restore the DirectX 10 version for older mods via this Steam Community Guide Re5dx10.exe Download
DirectX 10 was introduced with Windows Vista and improved upon DirectX 9 by offering better graphics rendering, dynamic shadows, and enhanced performance. For Resident Evil 5 players, the Re5dx10.exe file is essential if you wish to play the game with higher visual fidelity on modern (or slightly older) Windows systems. However, because this file is often flagged by antivirus software, corrupted during installation, or missing after a manual transfer, many users search for a standalone . False positive
If you are trying to enable local splitscreen, you might be looking for a modified executable. These are often hosted on community hubs like the Steam Community Forums Nexus Mods Security Warning Be extremely cautious when downloading standalone Capcom has not updated the digital signature on