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Webservice & AsyncCallback

Hello NG,
i try to call a webservice-function with two parameters:

wsfunction(a as AsyncCallback, b as IAsyncResult) as IAsyncResult

The callbackaddress is a simple http-address.

How I define as Datatyp AsyncCallback and IAsyncResult?
Who can help?

Best regards
Michael

Nov 21 '05 #1
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