Dynamic-Link Library (DLL)

DLL, or dynamic-link library, is a file containing executable routines that can be loaded on demand by an application.

What is a DLL (dynamic-link library)?

A file containing executable routines that can be loaded on demand by an application. Dynamic-link libraries (DLLs) offer the advantage of providing standard services for many different calling applications, and they simplify and modularize application development by providing component-based services.

DLLs are loaded into RAM only when needed by the calling application, which reduces the memory requirements of large applications. DLLs are files that have the extension .dll.