The subdirectories in this directory provide a number of complete applications that utilize the ACE features. . Gateway -- Implements a connection-oriented application-level gateway that uses source-based and destination-based routing of messages between peers connected via TCP/IP networks. . Orbix-Examples -- Implements several applications that integrate ACE and Orbix (which is IONA's implementation of CORBA). . Synch-Benchmarks -- Implements a number of benchmarks that test the performance of various synchronization mechanisms. . TTCP -- Implements several variants of the TTCP benchmarking test for TCP and UCP using C sockets, ACE C++ wrappers, and several versions of CORBA (Orbix and ORBeline).