// this loads the named DLL file into memoryHMODULE LoadLibrary(LPCTSTR *szLibrary);// you then need to load each DLL export you want to use, you can load it by name or ''ordinal'' - // basically a function number, a 16 bit number, but you''ll need to cast it as a LPCTSTR (2nd arg)FARPROC GetProcAddress(HMODULE hModule, LPCTSTR lpProcName);// when you''ve finished using the DLL unload it with this:BOOL FreeLibrary(HMODULE hModule);  

  // this creates a variable type that will operate as a pointer to the MessageBox Funcntiontypedef int (*PFNMSGBOX)(HWND, LPCTSTR, LPCTSTR, UINT);// a variable can be declared, eg:PFNMSGBOX  pfnMessageBox = NULL; // good idea to init it to a known valueHMODULE hDll = NULL;// example function to load the user32.dll file & the functionbool LoadDll(void) {  // load the library & return false on failure hDll = LoadLibrary("user32.dll"); if(!hDll) return false; // get the proceedure address, note the type cast on the // returned value & also that windows has 2 varients of many string functions // suffixed with W and A for Widestring & Ascii strings  pfnMessageBox = (PFNMSGBOX) GetProcAddress(hDll, "MessageBoxA"); if( pfnMessageBox ) return true; // loaded badly, clear up FreeLibrary(hDll); hDll = NULL;}// example of using the functionvoid ShowMessageBox(void){ if(pfnMessageBox) pfnMessageBox(NULL, "Dynamically loaded from USER32.DLL", "Hello",MB_OK);}