If you absolutely need that specific build, look for a legitimate license. Otherwise, use a modern free editor or the official trial.
Here’s a solid, informative post written from a neutral, tech-aware perspective. It clearly explains what the patch is, its risks, and its typical use case—without promoting piracy. Sony Vegas Pro 14.0 Build 161 Patch – What You Need to Know Before Downloading Sony Vegas Pro 14.0 Build 161 Patch