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POPreventing .NET Assembly Version Redirection for System.Web.Services as Referenced by WSE
 

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  1. POPreventing .NET Assembly Version Redirection for System.Web.Services as Referenced by WSE
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    <p>I've got an ASP.NET web site application targeting the <strong>.NET 4.0</strong> Framework and the application exposes some web services using WSE 3.0 (Microsoft.Web.Services3.dll) for security. I'm getting a <strong>SoapHeaderException: SOAP header Security was not understood</strong> error when I consume the service. I have a very similar setup working OK when the application is targeting .NET 2.0 and I've compared the config files without identifying any differences.</p> <p>Using <a href="http://www.red-gate.com/products/reflector/" rel="nofollow noreferrer">Reflector</a> I can see that <strong>Microsoft.Web.Services3.dll</strong> is referencing <strong>System.Web.Services, Version=2.0.0.0</strong> but when I check the assembly binding using <a href="http://msdn.microsoft.com/en-us/library/e74a18c4.aspx" rel="nofollow noreferrer">Fuslogvw.exe (Assembly Binding Log Viewer)</a> I see <em><strong>Version redirect found in framework config: 2.0.0.0 redirected to 4.0.0.0</strong></em>. I've checked the various machine level config files and there is no explicit reference to a redirect so I'm fairly sure the redirect is due to a Microsoft <a href="http://msdn.microsoft.com/en-us/library/dz32563a" rel="nofollow noreferrer">Publisher Policy</a> linked into the assemblies. I've tried to use the <a href="http://msdn.microsoft.com/en-us/library/cf9025zt" rel="nofollow noreferrer">publisherPolicy Element</a> to prevent this redirection using the config shown below but it does not seem to have any affect. I've also tried moving the publisherPolicy element outside the dependentAssembly element make it apply generally but that didn't help either.</p> <p>Any ideas what I'm doing wrong or alternative ways to force the assembly bind to the specific version of the assembly?</p> <pre><code>&lt;runtime&gt; &lt;assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1"&gt; &lt;dependentAssembly&gt; &lt;assemblyIdentity name="System.Web.Services, Version=2.0.0.0" publicKeyToken="b03f5f7f11d50a3a" culture="neutral"/&gt; &lt;publisherPolicy apply="no" /&gt; &lt;/dependentAssembly&gt; &lt;/assemblyBinding&gt; &lt;/runtime&gt; </code></pre>
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    1. USJohn Saunders
    1. USMartin Hollingsworth
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      1. POPreventing .NET Assembly Version Redirection for System.Web.Services as Referenced by WSE
      1. USPreet Sangha
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      1. USPeyman
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    1. COTalk about heading down a rabbit hole! The problem was actually missing WSE / SOAP configuration as described in http://geeknotes.wordpress.com/2007/03/15/wse-30-hell-soap-header-security-was-not-understood/. I missed this initially when comparing the problem system with the working one as the configuration was in a separate sub directory web.config rather that in the root application web.config. Still curious whether it is possible to override the redirection of shared system assemblies though.
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      1. POPreventing .NET Assembly Version Redirection for System.Web.Services as Referenced by WSE
      1. USMartin Hollingsworth
    2. COJust have to comment on the fact that you're using an obsolete web service technology "for security".
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      1. POPreventing .NET Assembly Version Redirection for System.Web.Services as Referenced by WSE
      1. USJohn Saunders
    3. COI am well aware of that but it used by a CMS Product that we are working with so I have no control over it's use.
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      1. POPreventing .NET Assembly Version Redirection for System.Web.Services as Referenced by WSE
      1. USMartin Hollingsworth
 

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