DLL unloading itself

Question

Is it possible for a function that is inside a DLL to unload the DLL? I need to do this so I can make sure the DLL is not in use, then write to the DLL\'s file.

Answer 1

Use this when the dll has done it job:

    CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE)FreeLibrary, &__ImageBase, 0, NULL);
    // terminate if dll run in a separate thread ExitThread(0); 
    // or just return out the dll

And the __ImageBase is your dll's PE header structure:

EXTERN_C IMAGE_DOS_HEADER __ImageBase;