diff -up dbus-glib-0.74/dbus/dbus-gobject.c.wincaps-to-uscore dbus-glib-0.74/dbus/dbus-gobject.c
--- dbus-glib-0.74/dbus/dbus-gobject.c.wincaps-to-uscore	2008-05-27 08:45:57.000000000 -0400
+++ dbus-glib-0.74/dbus/dbus-gobject.c	2008-05-27 08:47:28.000000000 -0400
@@ -775,6 +775,7 @@ get_all_object_properties (DBusConnectio
   DBusMessageIter iter_dict_entry;
   DBusMessageIter iter_dict_value;
   const char *p;
+  char *uscore_propname;
 
   ret = dbus_message_new_method_return (message);
   if (ret == NULL)
@@ -815,10 +816,13 @@ get_all_object_properties (DBusConnectio
         p++;
       p++;
 
-      pspec = g_object_class_find_property (G_OBJECT_GET_CLASS (object), prop_name);
+      uscore_propname = _dbus_gutils_wincaps_to_uscore (prop_name);
+      pspec = g_object_class_find_property (G_OBJECT_GET_CLASS (object), uscore_propname);
+      g_free (uscore_propname);
+
       if (pspec == NULL)
         {
-          g_warning ("introspection data references non-existing property %s", prop_name);
+          g_warning ("introspection data references non-existing property %s", uscore_propname);
           continue;
         }