It seems like you've put in quite a bit of effort to get RollerCoaster Tycoon 1 running smoothly on your system. Since you're experiencing freezing and system lock-ups during gameplay, even after applying various compatibility settings and patches, there are a few additional troubleshooting steps you can try to address this issue: 1. Virtual Machines: Consider running RollerCoaster Tycoon 1 in a virtual machine (VM) that mimics an older operating system like Windows XP. This can sometimes provide better compatibility. 2. Compatibility Mode: In addition to the compatibility settings you've already tried, you can experiment with different combinations. You can also try running the game in "Compatibility Mode for Windows 7". 3...