Find Missing DLL Files Online
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This problem often shows up in an error window that reports: "A Required DLL File, xxxx, was not found" or "The procedure entry point xxxx couldn't be located in xxxx.DLL" when you try to run an application, but can also manifest itself more quietly as programs not working properly.
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The quickest solution to this problem can be by getting the DLL file from one of the following sites and moving it to the directory that it is supposed to be. Unless you have perfect memory, it might be a good idea to note the message in the error window before closing it.
Simply search the missing DLL file, download it and place it where it belongs!