FreeLibrary and AfxFreeLibrary
Processes that explicitly link to a DLL call the FreeLibrary function when the DLL module is no longer needed. This function decrements the module's reference count. And, if the reference count is zero, it's unmapped from the address space of the process.
In an MFC application, use AfxFreeLibrary instead of
FreeLibrary to unload an MFC extension DLL. The interface (function prototype) for
AfxFreeLibrary is the same as