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    Hi,

     I need help regarding the IFD_Authentication webservice error. I have deleted the web reference and updated it again but, still same the error is coming
    and the error is 'Microsoft.Crm.WebServices.Crm2007.MultipleOrganizationSoapHeaderAuthentica­tionProvider, Microsoft.Crm.WebServices, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' doesn't exist.

    i did the following to resolve this

    1.Add the following to your applications web.config (not CRM's web.config!)

    <assemblies>
    <clear/>
    <add assembly="*"/>
    </assemblies>

    2.  Go to the crm bin directory for IIS and either copy the Microsoft CRM.WebServices.dll to the GAC or to the bin directory of your custom ASP.Net application

     

    search for 'Microsoft.Crm.WebServices' dll in the MS-CRM server.It will be mostly in the crmweb/bin, register that dll to GAC and do an

    IISRESET....


    also tried david jennways suggestion in http://mscrmuk.blogspot.com/2008/01/crm-40-error-with-isv-pages.html  


    Can anyone help me solving this??

    Thanks, Aarch

     

     

    • Edited by Aarch Friday, July 10, 2009 6:19 AM
    Friday, July 10, 2009 6:18 AM

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    It worked for me by adding a reference to the dll in my custom web application rather than just dropping the dll in the bin directory.

    Another thing you can try is make sure all the other DLL that this DLL references are in the bin or GAC.

    You can find that using reflector or the list is below.

    Microsoft.Crm
    Microsoft.Crm.Entities
    Microsoft.Crm.MetadataService
    Microsoft.Crm.ObjectModel
    Microsoft.Crm.Platform.Sdk
    Microsoft.Crm.Platform.Server
    Microsoft.Crm.Sdk
    Microsoft.Crm.Tools.ImportExport.Publish

    Hope this helps

    Friday, July 10, 2009 7:46 AM