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A dynamic-link library (DLL) is a shared library in the Microsoft Windows or OS/2 operating system. A DLL can contain executable code (functions), data, and resources.
The former of the previously-mentioned variables adjusts the executables' search path for the shared libraries, while the latter displays the names of the libraries as they are loaded and linked. Apple's macOS dynamic linker is an open-source project released as part of Darwin and can be found in the Apple's open-source dyld project. [11]
A dynamic library can be linked at build-time to a stub for each library resource that is resolved at run-time. [1] Alternatively, a dynamic library can be loaded without linking to stubs. Most modern operating systems use the same format for both a dynamic library and an executable [ NB 1 ] which affords two main advantages: it necessitates ...
The Windows operating system contains compiled versions of these libraries known as dynamically-linked libraries (), which are executable libraries that can be used by multiple programs while only one copy of the library is loaded into memory.
A dynamically linked library (dynamic-link library, or DLL, under Windows and OS/2; shareable image under OpenVMS; [7] dynamic shared object, or DSO, under Unix-like systems) is a library intended for dynamic linking.
Often, a Windows dynamic-link library (DLL) has the file extension .dll, [20] although sometimes different extensions are used to indicate general content, e.g. .ocx for a OLE library. A .lib file can be either a static library or contain the information needed to build an application that consumes the associated DLL. In the latter case, the ...
DLL hell is an umbrella term for the complications that arise when one works with dynamic-link libraries (DLLs) used with older Microsoft Windows operating systems, [1] particularly legacy 16-bit editions, which all run in a single memory space. DLL hell can appear in many different ways, wherein affected programs may fail to run correctly, if ...
Dynamic loading is a mechanism by which a computer program can, at run time, load a library (or other binary) into memory, retrieve the addresses of functions and variables contained in the library, execute those functions or access those variables, and unload the library from memory.