The file ooserver.shar is a shell archive of the sources to the
ooserver server, an example presented as part of the
multi-threaded servers tutorial at the Second Usenix Mach
workshop in November 1991 at Monterey, CA.  This is a toy service
that demonstrates the construction of an object-oriented (ports
represent objects) multi-threaded server.  The archive also
contains a toy client to excercise the server.