The tool is not included by default in Windows 7 but is part of the DirectX Software Development Kit (SDK) Official Source
: Enables or disables advanced hardware acceleration and hardware-level features for troubleshooting. EXPERIMENTAL force dx 11.0 - Return of Reckoning
DXCPL.exe, also known as DirectX Control Panel, is a utility that allows users to configure and troubleshoot DirectX settings on their Windows operating system. DirectX is a set of APIs (Application Programming Interfaces) developed by Microsoft that enables developers to create games and multimedia applications that run on Windows.
: Open the tool and click "Edit List" to add the .exe file of the specific game or program you want to modify.