Name of app: THX Spatial Audio
Version:V1.9.1.344
WRZ$ reward:50
Link: https://www.razer.com/p/RZ11-13000-0001

Been looking for this everywhere.
Even tried to buy it but order keeps getting canceled.

Can't find THX Spatial Audio, but you should check out Equalizer APO + HeSuVi. They're free, and will allow you to replicate many Headphone Virtualisation technologies - some may work better for your particular physical features than THX Spatial Audio, it's worth trying out a few and choosing the one that works best!

AND you should be able to find an EQ profile for your individual headphone to help optimise sound.

Demo video can be seen here: https://www.youtube.com/watch?v=WlqpG2euh50

tldr steps:
1. Download and install Equalizer APO
2. Download and install HeSuVi
3. Configure windows audio to 7.1 speaker setup.
4. Try out various headphone virtualisation setups in HeSuVi and pick one that works best.
CHeck here for more detailed installation instructions: https://sourceforge.net/p/hesuvi/wiki/Help/#installation

P.S. Pretty sure HeSuVi will actually have THX Spatial Audio too. Well worth checking out, esp since it's free.