https://github.com/walbourn/directx-sdk-samples 11
https://github.com/Microsoft/DirectX-Graphics-Samples 12
https://walbourn.github.io/the-zombie-directx-sdk/
https://github.com/Microsoft/DirectXMath
https://download.microsoft.com/download/1/7/1/1718CCC4-6315-4D8E-9543-8E28A4E18C4C/dxwebsetup.exe
https://download.microsoft.com/download/3/A/5/3A53CE87-F5C9-4CE5-92E1-5E2AF4841741/DXSDK_Mar09.exe
http://download.microsoft.com/download/F/1/7/F178BCE4-FA19-428F-BB60-F3DEE1130BFA/DXSDK_Feb10.exe 42
https://download.microsoft.com/download/A/E/7/AE743F1F-632B-4809-87A9-AA1BB3458E31/DXSDK_Jun10.exe 43