The keyword refers to a specialized utility known as the DirectX Control Panel ( dxcpl.exe ), specifically used by gamers and developers on older operating systems to bypass hardware limitations. What is DXCPL?

Run dxcpl.exe as Administrator every time, or create a scheduled task at startup. Better yet, export settings (as above) and create a batch file:

: For general DirectX troubleshooting, you can also use the built-in DirectX Diagnostic Tool by typing dxdiag into the Windows search or Run box.

If you are a gamer or software engineer still running , you may have encountered cryptic error messages like “D3D11CreateDeviceAndSwapChain Failed” or “Hardware does not support DirectX 11.” When standard driver updates fail, a hidden but powerful Microsoft tool comes to the rescue: Dxcpl (DirectX Control Panel).

The most mysterious part of your search is the suffix "37." In the context of Dxcpl and Windows 7 64-bit, "37" can mean one of three things: