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My goal is to connect a WSE 3.0 client to a WCF asp.net hosted service,
utilizing MTOM encoding and if at all possible, streamedRequest transfer mode.

I am starting with a basic Hello World service. I am basing the
configuration on these articles:

http://devlicio.us/blogs/ziemowit_sk...d-wse-3-0.aspx
http://msdn2.microsoft.com/en-us/library/ms730049.aspx

When calling the hello method of the service I am getting the error:

SOAP Action header was not understood

Any help is greatly appreciated.

The WCF Host Service is defined as:

<ServiceContract(SessionMode:=SessionMode.NotAllow ed)> _
Public Interface IWCFTestService

<OperationContract()> _
Function hello(ByVal value As String) As String

End Interface

The host web.config is:

<?xml version="1.0"?>

<configuration>
<system.serviceModel>
<services>
<service name="WCFTestService" behaviorConfiguration="returnFaults">
<endpoint address="" contract="IWCFTestService"
binding="wsHttpBinding" bindingConfiguration="wsHttp"/>
<endpoint address="2004" contract="IWCFTestService"
binding="customBinding" bindingConfiguration="WSE"/>
</service>
</services>
<bindings>
<customBinding>
<binding name="WSE">
<textMessageEncoding messageVersion="Soap12WSAddressingAugust2004"/>
<httpTransport/>
</binding>
</customBinding>
<wsHttpBinding>
<binding name="wsHttp"/>
</wsHttpBinding>
</bindings>
<behaviors>
<serviceBehaviors>
<behavior name="returnFaults" >
<serviceDebug includeExceptionDetailInFaults="true" />
<serviceMetadata httpGetEnabled="true" />
</behavior>
</serviceBehaviors>
</behaviors>
</system.serviceModel>
</configuration>

The WSE Client config is able to add the web reference and there is one
class generated for each of the endpoints defined by the service. If I use
the Soap11 messageVersion specified in the MSDN article, I only see one
client class defined so I assume at this point, Soap12 is the proper
configuration as noted in the blog article.

The client code is:

Imports WCFTestServiceClient.WCFTestService
Module Module1

Sub Main()
Dim service As New WCFTestService.CustomBinding_IWCFTestService
System.Console.WriteLine(service.hello("Rich"))
Dim x As String = ""
End Sub

End Module

The client app.config configuration is:
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<configSections>
<sectionGroup name="applicationSettings"
type="System.Configuration.ApplicationSettingsGrou p, System, Version=2.0.0.0,
Culture=neutral, PublicKeyToken=b77a5c561934e089">
<section name="WCFTestServiceClient.My.MySettings"
type="System.Configuration.ClientSettingsSection, System, Version=2.0.0.0,
Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
</sectionGroup>
<section name="microsoft.web.services3"
type="Microsoft.Web.Services3.Configuration.WebSer vicesConfiguration,
Microsoft.Web.Services3, Version=3.0.0.0, Culture=neutral,
PublicKeyToken=31bf3856ad364e35" />
</configSections>
<system.diagnostics>
<sources>
<!-- This section defines the logging configuration for
My.Application.Log -->
<source name="DefaultSource" switchName="DefaultSwitch">
<listeners>
<add name="FileLog" />
<!-- Uncomment the below section to write to the Application Event
Log -->
<!--<add name="EventLog"/>-->
</listeners>
</source>
</sources>
<switches>
<add name="DefaultSwitch" value="Information" />
</switches>
<sharedListeners>
<add name="FileLog"
type="Microsoft.VisualBasic.Logging.FileLogTraceLi stener,
Microsoft.VisualBasic, Version=8.0.0.0, Culture=neutral,
PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL"
initializeData="FileLogWriter" />
<!-- Uncomment the below section and replace APPLICATION_NAME with the
name of your application to write to the Application Event Log -->
<!--<add name="EventLog"
type="System.Diagnostics.EventLogTraceListener"
initializeData="APPLICATION_NAME"/> -->
</sharedListeners>
</system.diagnostics>
<applicationSettings>
<WCFTestServiceClient.My.MySettings>
<setting name="WCFTestServiceClient_WCFTestService_WCFTestS ervice"
serializeAs="String">
<value>http://vmservercollett/WCFWSEServiceTest/Service.svc</value>
</setting>
</WCFTestServiceClient.My.MySettings>
</applicationSettings>
<microsoft.web.services3>
<messaging>
<mtom clientMode="Off" />
</messaging>
<diagnostics>
<trace enabled="false" input="InputTrace.webinfo"
output="OutputTrace.webinfo" />
</diagnostics>
</microsoft.web.services3>
</configuration>

The http conversation is:

POST /WCFWSEServiceTest/Service.svc/2004 HTTP/1.1
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; MS Web Services Client
Protocol 2.0.50727.832)
VsDebuggerCausalityData:
uIDPo6Qxe7N1eM9HhvdKAtBbVyQAAAAAnYhYItwjIkKr0ekzCl TrSM22vQv1ompKg0kaBJHlxo8ACAAA
Content-Type: application/soap+xml; charset=utf-8;
action="http://tempuri.org/IWCFTestService/hello"
Host: vmservercollett
Content-Length: 306
Expect: 100-continue
Connection: Keep-Alive

HTTP/1.1 100 Continue

<?xml version="1.0" encoding="utf-8"?><soap:Envelope
xmlns:soap="http://www.w3.org/2003/05/soap-envelope"
xmlnssi="http://www.w3.org/2001/XMLSchema-instance"
xmlnssd="http://www.w3.org/2001/XMLSchema"><soap:Body><hello
xmlns="http://tempuri.org/"><value>Rich</value></hello></soap:Body></soap:Envelope>

HTTP/1.1 500 Internal Server Error
Date: Fri, 24 Aug 2007 19:27:06 GMT
Server: Microsoft-IIS/6.0
MicrosoftOfficeWebServer: 5.0_Pub
X-Powered-By: ASP.NET
X-AspNet-Version: 2.0.50727
Cache-Control: private
Content-Type: application/soap+xml; charset=utf-8
Content-Length: 1534

<s:Envelope xmlns:s="http://www.w3.org/2003/05/soap-envelope"
xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing"><s:Header><a:Action
s:mustUnderstand="1">http://schemas.microsoft.com/net/2005/12/windowscommunicationfoundation/dispatcher/fault</a:Action><a:To
s:mustUnderstand="1">http://schemas.xmlsoap.org/ws/2004/08/addressing/role/anonymous</a:To></s:Header><s:Body><s:Fault><s:Code><s:Value>s:Recei ver</s:Value><s:Subcode><s:Value
xmlns:a="http://schemas.microsoft.com/net/2005/12/windowscommunicationfoundation/dispatcher">a:InternalServiceFault</s:Value></s:Subcode></s:Code><s:Reason><s:Text
xml:lang="en-US">The SOAP action specified on the message, '', does not match
the HTTP SOAP Action, 'http://tempuri.org/IWCFTestService/hello'.
</s:Text></s:Reason><setail><ExceptionDetail
xmlns="http://schemas.datacontract.org/2004/07/System.ServiceModel"
xmlns:i="http://www.w3.org/2001/XMLSchema-instance"><HelpLink
i:nil="true"/><InnerException i:nil="true"/><Message>The SOAP action
specified on the message, '', does not match the HTTP SOAP Action,
'http://tempuri.org/IWCFTestService/hello'. </Message><StackTrace> at
System.ServiceModel.Channels.RequestContextBase.ge t_RequestMessage()

at
System.ServiceModel.Dispatcher.ChannelHandler.Prov ideFaultAndReplyFailure(RequestContext
request, Exception exception, ErrorHandlerFaultInfo& faultInfo, Boolean&
replied)</StackTrace><Type>System.ServiceModel.ActionMismatc hAddressingException</Type></ExceptionDetail></setail></s:Fault></s:Body></s:Envelope>