The logical connections depicted in FIG. 1 include a local-area network (LAN) 171 and a wide-area network (WAN) 173 but may also include other networks, such as connections to a metropolitan-area network (MAN), intranet, or the Internet. [0033] When used in a LAN networking environment, the computer 110 is connected to the LAN 171 through a network interface or adapter 170.