An EXE file, which is short for executable file, is a computer file that is used to perform various functions or operations. When one clicks on an exe file, a built-in routine automatically executes code that can set several functions into motion.
DLL, short for Dynamic Link library, is Microsoft's implementation of the shared library concept in the Microsoft Windows and OS/2 operating systems. DLL files not only help to utilize system resources like hard disk and memory, but also improve overall system performance. They can be used by many different programs to perform a specific function, playing a crucial role in the functioning of computer systems.