If you follow technology news you should have got surprised reading the article title because there is no official DirectX 11 for Windows XP or Vista as of now, Microsoft DirectX 11 (6.01.7000.0000) will be made available on Windows 7 and Windows Vista when officially released in coming months
From 外國論壇
XP只支持DX9.0
不支持DX10,如果支持那是破解版本的。但破解版本还是不如正規版本效果好
想玩DX11游戲,装VISTA吧。。。或WIN7。。。。
但内存要高才行。。。最低2G
from 百度
http://www.ipve.com/bbs/viewthread.php?tid=275524&extra=page%3D1
quote埋之前既post俾你睇