Setup instructions
You'll need the 32-bit version of MPC-HC installed and working on your system. In case you don't have it already, you can download it here: installation should be straightforward.
Now, download mpc-vr.exe and put it in the same folder as mpc-hc.exe (on a typical 64-bit Windows installation, that would be C:\Program Files (x86)\MPC-HC). Get my custom LAVVideo.ax video decoder and put it into the LAVFilters subfolder (usually C:\Program Files (x86)\MPC-HC\LAVFilters): rename the existing file there if you want to keep it as backup in case anything goes wrong, or just overwrite if you're feeling bold.
If you don't have the Intel MediaSDK library or you're not sure, download it from this link and decompress to the same LAVFilters subfolder where you put LAVVideo.ax.
If you want 3D subtitle support, download my custom build of VSFilter.dll and put it in the same old LAVFilters subfolder. The filter needs to be registered with Windows for MPC-VR to be able to recognize it. Open an admin command prompt, change to the LAVFilters directory, and run the command regsvr32 VSFilter.dll. So in a typical environment, something like:
C:
cd C:\Program Files (x86)\MPC-HC\LAVFilters
regsvr32 VSFilter.dll