DSP Robotics Support

If I create a DSP plug-in, I'd like to take the windows sound output (or sound from any app) and pass it through the DSP plug-in before before sending it to the speaker. Is there a way to do that?

Thiscan be done through VAC (virtual audio cable driver, VB-Audio's Voicemeeter as for an example) but, you also could use APO layer as like done in EqualizerAPO (partial support for VST effects,though, I have not tried if VSTi would work... ).