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HeaderAuthentica­tionProvider doesn’t exist

Another issue that may be faced when deploying custom .Net applications in the CRM root directory is the following error:’Microsoft.Crm.WebServices.Crm2007.MultipleOrganizationSoapHeaderAuthentica­tionProvider, Microsoft.Crm.WebServices, Version=, Culture=neutral, PublicKeyToken=31bf3856ad364e35′ doesn’t exist. You can resolve this one of two ways… 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

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