in chapter 32 (services) class QuoteServer throws error:
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Quote Server failed in Listener: A blocking operation was interrupted by a call to WSACancelBlockingCall

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.
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Any idea why?

U can see this error in event Viewer or if u remove try except block in finction Listener.
Microsoft says something abt this, but I didn't understand... Pls clarify.