Websites that allow for easy downloading of individual DLL files seem to be the answer you're looking for when you get one of those error messages like "DLL not found" or "DLL missing".
REPAIR ALL MISSING DLL FILES WITHOUT DOWNLOADING OR INSTALLING ANYTHING
Consider this a fair warning: DLL download sites should almost always be avoided, even though they sometimes offer a quick fix. There are other, perfectly safe and acceptable ways to fix these types of problems that don't involve downloading files from these sites.
DLL files are created and distributed by companies that develop software. Sometimes that software company is Microsoft, sometimes not. Many companies create DLL files as part of their software packages.
A stable, clean, and up-to-date copy of a DLL file can only be guaranteed by the developer. Websites that allow individual DLL downloads are not, in all but the rarest cases, approved places to download DLLs.
