I hit the SoapHeaderAuthenticationProvider error,message:-
'Microsoft.Crm.WebServices.Crm2007.MultipleOrganizationSoapHeaderAuthenticationProvider,
Microsoft.Crm.WebServices, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=31bf3856ad364e35' doesn't exist.
Parameter name:
Microsoft.Crm.WebServices.Crm2007.MultipleOrganizationSoapHeaderAuthenticationProvider,
Microsoft.Crm.WebServices, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=31bf3856ad364e35
Solution:
Error is cause by one of the MSCRM DLL "Microsoft.Crm.WebServices.dll"
Just Drag the DLL to GAC folder solved the problem.