What are dll's
DLL Libraries
Dynamic Link Libraries (DLL) are an important
structural component of Microsoft Windows. DLLs allow certain code
fragments to be compiled into a single library, and to be linked to by
multiple programs. This means that only one copy of the library needs
to exist, and multiple programs can share the functions and the data
between them. The difference between a DLL and a static library is that
when you compile your programs, the DLL is not compiled into your
executable, but instead remains a separate module. This feature helps
to keep executable size low, and also allows for a DLL to be loaded
into memory only when it is needed.