Hi, First, thx a lot for helping me. I have tried the binaries you pointed me. Unfortunatelly I got the same result: When I run dbus-daemon in a service (user name is SYSTEM so) , then dbus-monitor --system failed (run as default user: Administrator) It works well if I run the dbus-daemon as Administrator so it seems that even using system bus, it seems that the user name is used to check something ... I attach the log of the client to this mail. Sincerely Julien <div class="gmail_quote">2009/11/22 Ralf Habacker <<a href="mailto:ralf.habacker@freenet.de">ralf.habacker@freenet.de</a>> <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> Julien Isorce schrieb:<div class="im"> <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> Hi, I got the exact same result with the git repository of dbus4win. I also tried the big patch you submited, but I still got the same error about version macro not defined. </blockquote></div> windbus sources (subdir tags/1.2.4) are compilable with cmake and contains the required patches for initial system bus support (all local users are allowed to connect to system bus) For your convencience a binary package containing the related patches is available from <a href="http://www.winkde.org/pub/kde/ports/win32/repository/win32libs/dbus-vc90-1.2.4-2-bin.tar.bz2" target="_blank">http://www.winkde.org/pub/kde/ports/win32/repository/win32libs/dbus-vc90-1.2.4-2-bin.tar.bz2</a> Regards Ralf </blockquote></div>