bhat sabzar

Why does Prince of Persia tell me that “d3dx9_42.dll is missing”?

01 Jan 2013
Windows 7
Chrome 23
01 Jan 2013 | Windows 7 | Chrome 23

I installed Prince of Persia: Sands of Time but when I open it it tells me that “d3dx9_42.dll is missing”. How can I fix this error and play the game?