DLL

 1 typedef IUnknown * (* CREATEFUNCPTR)();

 2 

 3 IUnknown * CallCreateInstance(char * name)

 4 {

 5     HINSTANCE hComponent = ::LoadLibrary(name);

 6     if (hComponent == NULL)

 7     {

 8         // ...

 9         return NULL;

10     }

11 

12     CREATEFUNCPTR pFunc = (CREATEFUNCPTR)::GetProcAddress(hComponent, "CreateInstace");

13     if (pFunc == NULL)

14     {

15         // ...

16         return NULL;

17     }

18 

19     return pFunc();

20 }