Rebels

Ok how can I whitelist the file/folder?

I download the Ultima PSOBB Launcher so that I can play PSOBB but everytime I try to Start Game in the Ultima PSOBB Launcher my McAfee(Anti-Virus) says "A virus try to attack your PC, but we took care of it. What we found: Suspect!42a1c4378c4f Where we found it: E:\Ultima PSOBB\psobb.exe" I know that psobb.exe will not harm my pc but my Anti-Virus will not let me play PSOBB. so how can I play PSOBB with my McAfee(Anti-Virus)?