Run make_portable.ps1 in Powershell to build a PORTABLE VapourSynth-Classic with vseditor-mod and vspreview embedded.

If you need to use your proxy, uncomment the first line and set it to proper value.

You need to put your VapourSynth script module file (*.py) in VapourSynth\VapourSynthScripts, and your filter binary file (*.dll) in VapourSynth\vapoursynth64\plugins.

If you want to check if VapourSynth and vspreview are installed properly, you can open root directory in VSCode and press F5 to launch vspreview, or just run the command below:

VapourSynth\python.exe -m vspreview test.vpy

vseditor is at VapourSynth\vsedit.exe.