Newbie:Questions about server side asynchronous web methods

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Hi,

I've two questions about server side asynchronous web methods:

(1) When callback is run which signals ASMX handler to call EndXX function,
it runs on a separate thread. Is this thread a thread from ASP.NET
threadpool ?
(2) Suppose in BeginXXX function a web service is called synchronously and
CompletedSynchronously flag is set to true. What implication it has ?

Thanks in advance and regards

Navin


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