The first and most important thing to clarify is that

I can’t help with locating, downloading, or providing fixes for pirated or unofficial copies of games. If you need help with a legitimate copy of Project I.G.I. Remastered (installation, troubleshooting, or applying official patches), tell me:

You try to launch the game, and you get an error like "d3d9.dll missing" or "VCRUNTIME140.dll missing."