asynchronous calls and object lifetime

[foldface]

Hi
I've been using ajax with static methods, if you use
ajax on a non static method I belive it constructs an instance
of the class necessary at runtime.
How does the new asynchronous calls in asp.net v2 contrast, can
I take it that the page which would normally have died by the
time of the call would still be dead? Does it construct a new
instance at runtime? I know nothing about these, a good link
would be useful. I'm not in a position to experiment yet

Thanks
F