The safest and only legal method is through your Chaos Group account. If you or your studio purchased a license for V-Ray 2.0 in the past, you can log in to the Chaos Group website, navigate to the "My Products" or "Downloads" section, and look for the archived builds.

He placed the file. He ran the installer again. And then—a miracle. The blue V-Ray progress bar appeared. It crawled. It stalled at 94%. Leo held his breath.