“The program can’t start because d3d9.dll is missing” – that’s what I got when tried to launch Skyrim on my computer. Reinstalling the game didn’t solve the problem. My friend who installed Skyrim from the same CD doesn’t have d3d9.dll is missing error. Maybe it’s some kind of virus on my computer or something, but now I can’t even launch Fallout 3, which I was playing few days ago. I thought that the only way to fix d3d9.dll is missing error is to completely reinstall Windows, but I was wrong, there is much easier solution to fix this problem.
After spending few days searching on the Internet I found a lot of useful information that I will share with you. First of all, you don’t need to reinstall the application that gives you d3d9.dll is missing or not found error. D3d9.dll usually appears when you try to run some game. This file belongs to DirectX software and that’s why you are getting error. When you launch the game, Windows launches DirectX to be able to run graphical component of the game and the DirectX loads all of needed dll libraries and d3d9.dll is one of the essential libraries. Since, all of the games use the same d3d9.dll library, usually happens that the file becomes damaged or overwritten at the same time by many programs.
Long story short, to fix the d3d9.dll is missing error on your computer you just need to download and install d3d9.dll file from here: http://fix4dll.com/d3d9_dll.
Now all of the dll errors should be fixed.