Based on popular community guides from the Steam Community, your archive likely contains one of the following:
Always scan .rar files from unofficial sources with updated antivirus software before extracting or running executable files. Guide :: Unlocker Hack - Split/Second - Steam Community SplitSecond.rar
: If the game launches and immediately closes, you may need to run the .exe in Compatibility Mode for Windows 7 or download a "SecuROM remover" patch. Based on popular community guides from the Steam