libdbus-glib-1-2 0.60-2ubuntu5 (i386 binary) in ubuntu dapper

simple interprocess messaging system (GLib-based shared library)
 D-BUS is a message bus, used for sending messages between applications.
 Conceptually, it fits somewhere in between raw sockets and CORBA in
 terms of complexity.
 .
 This package provides the GLib-based shared library for applications using the
 GLib interface to D-BUS.
 .
 See the dbus description for more information about D-BUS in general.