This is a grey area. Korg no longer produces the 01/W hardware. They do not sell an official 01/W VST (they sell the M1 VST, but not the 01/W).
Here's a step-by-step guide to linking Soundfonts to your Korg 01/W: korg 01 w soundfont link
: Part of the "Symphonic Collection," these use waveshaping to create realistic solo articulations. How to Use Your SoundFont (SF2) This is a grey area
(large SoundFont archive)
search for "Free Korg 01/W SF2" on Google—you will find virus-laden "soundfont downloader" exe files. korg 01 w soundfont link