create_new_console option only on Windows

Author: thomas-l

components/process.rst

@@ -100,6 +100,10 @@ with a non-zero code)::
 Configuring Process Options
 ---------------------------
 
+.. caution::
+
+    Windows only
+
 Symfony uses the PHP :phpfunction:`proc_open` function to run the processes.
 You can configure the options passed to the ``other_options`` argument of
 ``proc_open()`` using the ``setOptions()`` method::