The primary purpose of a No-CD mod is to remove the physical disc requirement and bypass obsolete copy-protection.
: Right-click the new speed.exe , select Properties , go to the Compatibility tab, and set it to run as an Administrator and in Compatibility Mode for Windows XP (Service Pack 3) . Essential Modern Enhancements
: Windows 10/11 disabled SafeDisc drivers, meaning the game literally cannot "talk" to your disc drive for verification.
