DLL Injection Explained! Injecting a DLL is the act of loading a dynamic link library into an external process, from your own process. It is the easiest to perform, easiest to manage and most portable method to get execution in an external process. What is a DLL Injector?​ In computer programming, DLL injection is a technique used for running code within the address space of another process by forcing it to load a dynamic-link library. DLL injection is often used by external programs to influenc