Hi Greg! Great to be back. Academic studies took their toll, but now I'm down to my thesis.
I agree with you. Ideally you would want to run this from within the OS. And next from a rescue CD. If it's a corrupted file, then sfc is the way to go. But if it's a virus, sfc won't help. So either way is appropriate. I had never heard of the standalone sweeper before. Will this remove viruses and repair startup? If so, I really need to investigate it.