ing a computer system including a plurality of computers and a network processed as a user resourceUS6138162 *Feb 11, 1997Oct 24, 2000Pointcast, Inc.Method and apparatus for configuring a client to redirect requests to a caching proxy server based on a category ID with the requestUS6233577 *Feb 17, 1998May 15, 2001Phone.Com, Inc.Centralized certificate management system for two-way interactive com