I understand you're looking for a free vocoder VST for Windows with solid features, similar to the Orange Vocoder (which is a paid plugin from Zynaptiq).
Zynaptiq offers a fully functional 30-day free trial for both the standard and "Nano" versions of the Orange Vocoder. This is the only way to get the official "Orange" sound for free on Windows without resorting to unsafe cracked software.
Move to VST Folder: Copy the file into your Windows VST folder. Common paths include C:\Program Files\VSTPlugins or C:\Program Files\Common Files\VST3. Orange Vocoder Vst Free Download Windows
Carrier Signal: In Orange Vocoder IV, you can use the built-in synth by selecting "Internal" as the carrier.
Disclaimer
Orange Vocoder IV (Full Version): You can request a 30-day trial by filling out the form on the Zynaptiq Downloads page. The installer works for both new installations and updates.
: Formant shifting, stereo operation, a MIDI-controlled pitch quantizer, and a "Dice" feature for smart randomization. Alternative: Orange Vocoder NANO I understand you're looking for a free vocoder
Workflow: Features a streamlined UI with "smart" section randomization for quick sound design. Free Alternatives If you are looking for a strictly vocoder, these popular options are available for Windows: