But if they kill humans, who will buy their software? No, I'm sure that merely enslaving humans would satisfy them.
(Late news: I just did a deeper search of the DX SDK and found a texture-helper routine which does manage textures. The trouble was, their own code does not use it. That's my main problem with MS - no instructions. I guess all their Direct-X guys are planning to quit MS and write their own books, so they'd like to keep this stuff secret until they do.)