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Wes Weeks

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=4.0.0.0, 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

Posted on Friday, April 25, 2008 5:08 PM Microsoft CRM | Back to top


Comments on this post: HeaderAuthentica­tionProvider doesn't exist

# re: Microsoft.Crm.WebServices.Crm2007.MultipleOrganizationSoapHeaderAuthentica­tionProvider doesn't exist
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You are a gem...
Left by Rajeev Abrol on Jun 10, 2008 10:40 PM

# re: HeaderAuthentica­tionProvider doesn't exist
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Thanks for the post...this solved the problem!
Left by Vernon on Jan 10, 2009 5:10 PM

# re: HeaderAuthentica­tionProvider doesn't exist
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thanks for the post. it helped me to solve my issues
Left by dyamanagowda on Feb 06, 2009 3:33 AM

# re: HeaderAuthentica­tionProvider doesn't exist
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You are awesome!! I spent hours trying to track this down.
Left by everthankfuldeveloper on Mar 03, 2009 9:21 AM

# re: HeaderAuthentica­tionProvider doesn't exist
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Great and practical solution.Thanks for your support.
Left by Rasim on Jan 09, 2010 10:23 AM

# re: HeaderAuthentica­tionProvider doesn't exist
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Thx a lot, it's really saved my time. Thanks again.
Left by Mikhail on Jan 12, 2010 11:24 PM

# re: HeaderAuthentica­tionProvider doesn't exist
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Great Post, solved my issue perfectly.
Left by Mark on Mar 21, 2010 10:54 AM

# re: HeaderAuthentica­tionProvider doesn't exist
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Thanks, pointed me in the right direction. :)
Left by Richard on Mar 24, 2010 3:49 AM

# re: HeaderAuthentica­tionProvider doesn't exist
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Worked like a charm! Thanks
Left by Sam on Aug 19, 2011 1:35 PM

# re: HeaderAuthentica­tionProvider doesn't exist
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Excellent - worked for time!
Left by Carey on Sep 20, 2011 7:56 AM

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