Sir, Some tutorial users of Vegas Pro like Just Helex Alford, VEGASAUR, are suggesting to have free-extra-plugins to download through Sony Preset Manager, opening them with WinRAR and using them in Vegas Pro. I thank them for educating us i/r/o Vegas Pro and Will it be OK Sir?
The Sony Preset Manager is not a tool to download plug-ins but to share Vegas Pro FX presets among different Vegas Pro installations on several PCs (or to recreate saved FX presets after a re-installation).