Hi Marius! On the FSG Accessibility list, people are questioning our planned move of the AT-SPI infrastructure from CORBA to DBUS based on the analysis already named by Gary: http://eleceng.dit.ie/frank/rpc/CORBAGnomeDBUSPerformanceAnalysis.pdf Unfortunately the analysis does not really explain the exact bindings used, so it is impossible to evaluate properly. Are you aware of any other performance tests showing where possible bottlenecks for DBUS are? Olaf -- Olaf Jan Schmidt, KDE Accessibility co-maintainer, open standards accessibility networker, Protestant theology student and webmaster of http://accessibility.kde.org/ and http://www.amen-online.de/