想查一下WinRT，发现一stackoverflow一篇非常有意思的问答。
http://stackoverflow.com/questions/7457371/why-is-winrt-unmanaged
作者提问，为什么WinRT是非托管的？
答案是:
The new Windows API is unmanaged because the leaders in the Windows teams (and Office team, whose former leader –Sinofsky- is now the president of the Windows and Windows Live Division) had no part in the design and distribution of .NET, never promoted it in any way, and its popularity is actually a threat to their personal careers (imagine: if .NET became an even bigger success, that could likely put its designers and contributors -like Scott Guthrie- ahead of people like Steven Sinofsky who focused on other areas).
而且是
Might sound like a joke, but it’s actually serious.
想想大年那些大牛跟着老乔打天下，很天事情亲自管，20年前就奠定了今天的基础。
为微软如此重要的决定竟是这样做出。老乔天天骂Windows是低劣的仿制品，一点也不为过。