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Editorial Team
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Asked: 2026-05-12T19:46:05+00:00

A C# client application we developed calls an external SOAP web service of a

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A C# client application we developed calls an external SOAP web service of a third party company.

Now I want to trace the exact SOAP request envelopes that are being generated by the VS.NET-generated SOAP proxy in our application and transfered to the external SOAP web service.

The method of using a network monitor like Wireshark (as described here) or using Microsoft Network Monitor is no option since the externl SOAP web service only provides an SSL/HTTPS URL, so the payload of the HTTP packages are encrypted and not viewable.

My question is:

Is there a way of configuring the .NET-built-in web service client classes to output/trace/log their underlying HTTP requests and responses that are being generated/received? (or maybe some kind of event to subscribe to?)

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  1. Editorial Team

    If you’re using a standard web service (not WFC), you can extend the SoapExtension class as described here:

    http://www.blog.encoresystems.net/articles/how-to-capture-soap-envelopes-when-consuming-a-web-service.aspx

    If you’re using WFC, then you can implement IEndpointBehavior and IClientMessageBehavior as described here:

    http://weblogs.asp.net/paolopia/archive/2007/08/23/writing-a-wcf-message-inspector.aspx

    I use both, depending on whether I’m using web or service references.

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