PVC has all the options of the traditional Windows Volume Control plus following features. * PVC is Graphical. * Volume level is displayed in numbers : (Min=0 Max=100) * A Real Pepsi Pouring Wave file for Sound Testing. * Visibility : When you click out side of windows Volume control it disappears. But PVCs Volume Controller remain active until you close it. * Window on Top : Unlike windows Volume control you can keep PVC Volume Controller window on top of all windows. * Buttons to launch Windows Volume Control and Windows Adjust Audio Properties. * Drag and Drop.