Is there any real benefit to using the MicrosoftAjax library?

I have been using jQuery for the past couple of years now, and I'm comfortable with it. In every MVC project that I start, the first thing I do is delete 开发者_如何学Pythonthe MicrosoftAjax files from the solution. I'm wondering now if there's any value in them though? What can I do with them that I can't easily do with jQuery? Also, why do Microsoft include them with the solution if they're claiming to so whole-heartedly support jQuery?

No, No and No. They are including it because its their library, but IMHO they will drop the support in future versions.