title: ADFS 3.0 Custom attribute store configuration error
body: <p>I am trying to configure custom attribute store on my dev ADFS server. I have created sample solution to inject custom claims to ADFS. Added the custom DLL to the adfs server (C:\Windows\ADFS). Created custom attribute store in ADFS management console. When I check event log to see if the custom attribute store is loaded successfully, I see below error.</p>
  
  <blockquote>
    <p>server: windows server 2012 r2</p>
    
    <p>(Solution namespace: ADFSCustomAtrStore --- Dll name:
    ADFSCustomAtrStore.dll)</p>
  </blockquote>
  
  <p>I have tried below two options for custom attribute classname:</p>
  
  <blockquote>
    <p>ADFSCustomAtrStore.Class1, ADFSCustomAtrStore
    ADFSCustomAtrStore.Class1</p>
    
    <p>EVENT ID: 149</p>
    
    <p>During processing of the Federation Service configuration, the
    attribute store 'ADFSCustomAtrStore' could not be loaded.   Attribute
    store type: ADFSCustomAtrStore.Class1 </p>
    
    <p>User Action  If you are using a custom attribute store, verify that
    the custom attribute store is configured using AD FS Management
    snap-in. </p>
    
    <p>Additional Data  Could not load type 'ADFSCustomAtrStore.Class1' from
    assembly 'Microsoft.IdentityServer.ClaimsPolicy, Version=6.3.0.0,
    Culture=neutral, PublicKeyToken=31bf3856ad364e35'.</p>
  </blockquote>
  
  <p>To fix the issue tried below, but no success. 
  Installed custom solution to GAC. And provided below in custom attribute store class text box in ADFS:</p>
  
  <pre><code>CustomAttributeStores.Class1,AttributeStore, Version=1.0.0.0, Culture=neutral, PublicKeyToken=[SolKEY].
  </code></pre>
  
  <p>Any inputs/help would be great.</p>
  
  <p>I have referred below blog post to configure custom attribute store:
  <a href="http://blogs.technet.com/b/cloudpfe/archive/2013/12/27/how-to-create-a-custom-attribute-store-for-active-directory-federation-services-3-0.aspx" rel="nofollow">http://blogs.technet.com/b/cloudpfe/archive/2013/12/27/how-to-create-a-custom-attribute-store-for-active-directory-federation-services-3-0.aspx</a> </p>