How to delete the WSD port after delete printer ?

Hello, I'm programming a WSD printer's setup for installing/uninstalling the
printer's driver under Vista , once I have used PnPXDeviceAssociation::delete
to delete the printer's entry in the association database , the printer's
icon stays in the zone printer , and his WSD port also stays here , I found
that I must reboot for deleting them , once rebooted , the WSD port and
printer's icon disapear . I understand that cause of the PnP , but , can I
programatically delete the printer's icon and his WSD port once I used
PnPXDeviceAssociation::delete without rebooting the PC ?

Thanks in advance