Hard Truck. System Requirements:
- Pentium 266 CPU (Pentium III recommended for best performance)
- 64 MB RAM
- Direct3D compatible hardware accelerator
- Windows compatible sound card (recommended)
- Force Feedback steering wheel and pedals (recommended)
- Windows 9X, Windows 2000
- DirectX 7.X
Yeah. Sometime it happens that older software / games will not work with newer operating systems because the OS can execute some types of instructions differently than the OS the program / game was originally designed for.
Also, the game does not have to be very old to not work or to have problems. Fallout 3 is a recent game; released back in 2008. The game is not officially supported by Windows 7, some people have issues running that game, but there are workarounds to get it up and running.
I had minor issues getting Fallout 3 running on my laptop with Win 7. However, I have issues running G.E.C.K. in Win 7. That is an official Fallout 3 toolkit used to create modifications for the game. So far, I cannot get it up and running and have not found a solution.