Most of the time we all gets an dll file missing error either for any software or for OS. Sometimes, we able to resolve the issue and sometimes we could not be able. AllDll.net site allow you to download any Dll files that you need. This is one of the biggest catalog of .dll files on internet.
You can certainly find the dll file that you need on this website. They have grouped all the necessary dll files, and they ordered them alphabetically. You can also find your file by the first letter of the dll file or you can use the search function.