@Rainer Deyke: Thanks for your clarification. The problem is that, unless you set up your system to use Chinese for every non-unicode-ready application, systemwide and for all users, you will not get Chinese character output in the Windows console.
The downside is that setting up your OS in such a way tends to render the user interface of a lot of other applications unusable if Chinese isn't your everyday language. For a lot of us this isn't very practicable, eg. having my German umlauts replaced with Chinese glyphs isn't exactly what I have dreamed of all my life. That's what I meant with the changes not being trivial, and your response sounded a bit like I was talking nonsense and getting it to work was a piece of cake, and I naturally was curious whether there was a simple solution. While being a bit disappointing, thanks for straightening out that this isn't the case. Nonetheless there apparently is a bug here if D/Phobos with its supposed unicode support isn't capable of producing output which is possible with Python or even olde C++.