Vegas Pro 23 and newer clients no longer use this system for writing new VideoFX filter packages
(it still loads existing VideoFX filter packages, new system cannot save DirectX effects however*)
but it's still used for writing/importing audio filter packages

New filter packages default directory: %UserProfile%\Documents\OFX Presets\fxPackages

Sonic Foundry Preset Manager 1.0: https://web.archive.org/web/20130603204835/http://dspcdn.sonycreativesoftware.com/current/extras/sfpresetmngr10.exe
Preset Manager 2.0k: https://web.archive.org/web/20130603204835/http://dspcdn.sonycreativesoftware.com/current/extras/presetmngr20k.exe

*https://web.archive.org/web/20260330061612/https://www.vegascreativesoftware.info/us/forum/vegas-pro-23-visual-preset-chain-major-problem--149905/