What Does Dynamic Link Library (DLL) Mean?
A dynamic link library (DLL) is a shared program module with ordered code, methods, functions, enums and structures that may be dynamically called by an executing program during run time. A DLL usually has a file extension ending in .dll. Other file extensions are .drv and .ocx.
Techopedia Explains Dynamic Link Library (DLL)
DLL-defined function types are as follows: