Hi,
This problem usually occurs when d3dx9_37.dll is missing from your system.
http://www.d3dx9.net/download-missing-d3dx9_37-dll/
Download it and then extract the downloaded zip file to the Windows System32 folder, which is located in Windows Drive.
Note: Windows drive is the drive in which your windows is installed.
(that is located in your main drive which contains the installed windows)