Download Dxcpl !!better!! 〈Edge EXTENDED〉
It sounds like you're looking for (DirectX Control Panel), a tool from Microsoft's DirectX SDK that lets you force specific DirectX feature levels, enable debug output, or spoof GPU/driver details for testing.
If you meant a different dxcpl (like a custom tool for a specific game or mod), let me know and I can clarify further. download dxcpl