Thank you for explaining the file size variations and the virus alarm from a no-CD patch. Now it makes a lot more sense to me. Unfortunately, the no-CD patch does not work, but that is not your fault. I think Flåklypa Grand Prix No-CD Patch is missing the latest version of the game. If anyone knows how to make a no-CD patch, then here is the exe: FGP.exe. Please let me know if this should be posted somewhere else instead.