Service for IFeedbackEx.

You can find more information in comments below.

class IFeedbackExService
    {
    public:
        virtual void setFeedbackParam(void *param) = 0; // Set callback custom parameter 
        virtual void setFeedbackBefore(IFeedback::CallbackEx callback) = 0; // Set "before" callback function 
        virtual void setFeedbackAfter(IFeedback::Callback callback) = 0; // Set "after" callback function 
    
        virtual void Release() = 0; // Destroy instance 
    };