Reapply fix for EXPORT_C problem in backend.dll, which got lost in the merge - bug 2971
<!-- Bus that listens on a debug pipe and doesn't create any restrictions -->
<!DOCTYPE busconfig PUBLIC "-//freedesktop//DTD D-BUS Bus Configuration 1.0//EN"
"http://www.freedesktop.org/standards/dbus/1.0/busconfig.dtd">
<busconfig>
<listen>tcp:host=localhost,port=12436</listen>
<servicedir>C:/Data/dbus/valid-service-files</servicedir>
<policy context="default">
<allow send_interface="*"/>
<allow receive_interface="*"/>
<allow own="*"/>
<allow user="*"/>
</policy>
</busconfig>