A user is trying to run an older application on a Windows 10 computer that lists DirectX 9 as a system requirement. The computer has the latest version of DirectX 12 installed. Which of the following BEST describes how the application will run?
The application will run by using the backward-compatible DirectX 9 libraries included in Windows.
The user must first uninstall DirectX 12 and then install the legacy DirectX 9 package.
The application will fail to launch because DirectX 12 is not backward compatible with DirectX 9.
The application will automatically be upgraded to use the newer features of DirectX 12.
Windows 10 includes backward compatibility for older versions of DirectX. An application coded to use the DirectX 9 API will utilize the DirectX 9 libraries that are part of the modern Windows operating system. It will not automatically be upgraded to use DirectX 12 features, as that would require the application to be specifically programmed to use the DirectX 12 API. Although DirectX 12 is included in Windows 10, it cannot be uninstalled, and there is no need to do so, as it coexists with the libraries needed for older versions. For some very old applications, it might be necessary to install the DirectX End-User Runtime to supply legacy components not included in the base OS installation.
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