CThreadPool

class CThreadPool 
{ 
public: 
 
    template <typename T> 
    static void QueueUserWorkItem(void (T::*function)(void),  
        T *object, ULONG flags = WT_EXECUTELONGFUNCTION) 
    { 
        typedef std::pair<void (T::*)(), T *> CallbackType; 
        std::auto_ptr<CallbackType> p(new CallbackType(function, object)); 
 
        if (::QueueUserWorkItem(ThreadProc<T>, p.get(), flags)) 
        { 
            // The ThreadProc now has the responsibility of deleting the pair. 
            p.release(); 
        } 
        else 
        { 
            throw GetLastError(); 
        } 
    } 
 
private: 
 
    template <typename T> 
    static DWORD WINAPI ThreadProc(PVOID context) 
    { 
        typedef std::pair<void (T::*)(), T *> CallbackType; 
 
        std::auto_ptr<CallbackType> p(static_cast<CallbackType *>(context)); 
 
        (p->second->*p->first)(); 
        return 0; 
    } 
};

 https://code.msdn.microsoft.com/vstudio/CppWindowsService-cacf4948/sourcecode?fileId=21604&pathId=1789278805