sentences:  PnP-X uses SSDP and WS-Discovery network communication protocols to make network-connected devices as discoverable as those that are connected directly to a computer over a bus such as Universal Serial Bus (USB).PnP-X allows network-connected devices to appear as devices inside Windows connected physically and provides an installation experience that is similar to attaching a bus-connected device.The device manufacturer implements PnP-X capabilities to supplement either UPnP or Web Services for Devices (WSD) enabled devices.