[NTG-context] Windows console message from utf-8 source

Dear list, I have the following minimal example: \starttext \message{En español usamos acentuación} \stoptext Saved as utf-8, Linux displays the message fine. (I guess MacOS X would do the same.) The problem is the standard console in Windows. It requires IBM codepage 850 exclusively. (Or at least, I don’t know how to display utf-8 strings.) Is there any way to display the content of the \message above as cp850 from a utf-8 source? Many thanks for your help, Pablo -- http://www.ousia.tk