I kind of doubt this is the case, because more than 10 years ago they had accusations of this sort and undertook an extensive audit and cleanroom rewrite: https

I kind of doubt this is the case, because more than 10 years ago they had accusations of this sort and undertook an extensive audit and cleanroom rewrite: https://www.reactos.org/reset-reboot-restart-legal-issues-and-long-road-03 https://www.reactos.org/reset-reboot-restart-legal-issues-an...