Hi, I am using Emacs within a Cygwin environment on Windows 7 64bit. I have install the dbus Windows service with "messagebus-config", and started the service from Windows service console. After I called (org-notify-start), I got below Message before my task deadline: Warning: notification for "check org-notify" behind schedule! Error: (dbus-error "No connection to bus" :session) [2 times] Warning: notification for "check org-notify" behind schedule! Error: (dbus-error "No connection to bus" :session) ... In eLisp, if I call (dbus-init-bus :session), I got "dbus-init-bus: D-Bus error: "No connection to bus", :session"; if I call (dbus-init-bus :system), I got ((:signal :system "org.freedesktop.DBus.Local" "Disconnected") (nil "/org/freedesktop/DBus/Local" dbus-handle-bus-disconnect)). Does it means I have a system dbus, but no session dbus? Which dbus should Emacs/org-notify use? Thanks, David