MakeUseOf Answers is a Q&A forum. Our community solves your questions about anything related to the Internet and computers. It's free. Ask A QuestionQuestions tagged "directx" All questions Resolved Unresolved Why does Prince of Persia tell me that “d3dx9_42.dll is missing”? How can I install DirectX on Windows XP? What is the best virtualization software to run Windows 98 games in Windows XP or Windows 7? How can I find out which version of DirectX I have on Windows 7?