Not supported in core contexts yet.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=44655Signed-off-by: Józef Kucia <jkucia@codeweavers.com>
Signed-off-by: Henri Verbeet <hverbeet@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>