The Supermium component d3dcompiler_47.dll is not intended to run on Windows XP. And because it was built by Microsoft and not as part of Supermium itself, it cannot be compiled to use progwrp.dll like the open-source components can.
Instead, the LSC's Application Compatibility Toolkit was used to patch the DLL (which is a delay-loaded DLL with a TLS directory!) to work on Windows XP, and it did so successfully, enabling basic Direct3D 9 and OpenGL acceleration. This opens up the possibility to use other proprietary Chromium components such as Widevine CDM and SODA on XP, as well as non-Supermium applications.
We are working on ensuring that the ACT will fit the needs of Windows NT 5.x and 6.x users, and perhaps even fringe cases on Windows NT 10. It will be a more versatile solution than the previous extended kernels and will not risk the system integrity like previous solutions did.