Application designer connection to App Server

Hii,
I have a very basic level doubt, we all know that App Designer is 2 tier application/editor. But I observed lot of times, if I shutdown App server and try to connect through App designer, I get some debug error.Please can anybody tell me App server process connectivity with App Desigenr
Thanks in Advance

Thanks a lot Ajit and Nicolos.. Please find below error message
"Debugging disabled.Communication failure during rec(): WSAECONNRESET(10054) connection reset by peer
(143,41)"
How I am getting this error:
After login in App designer (in 2 tier mode), when I am shutting down App server (normal mode), I am getting this error only one time.
So my confusion here is how App designer debugging feature depends on App server?
Thanks

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Patrick wrote:
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Also how can CONNECTION POOLING help. In C# we OPEN a connection ONLY just before run the SP or get the data and we close the connection just after the operation is over.
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Am I right or have I missed something?
Edited by: user12240205 on Nov 17, 2010 2:04 AM

Application designer connection to App Server

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