SharePoint Stack Exchange is a question and answer site for SharePoint enthusiasts. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I'm trying to migrate across old code onto sharepoint 2010 where we utilize Microsoft.SharePoint.Portal.SingleSignOn.dll. I can't seem to find the dll anywhere (14 folder, GAC, Visual Studio .Net reference dialog).

MSDN seem to believe that the dll should still be available but doesn't specify where it is located.

I have Sharepoint 2010 Server installed on my development environment with Server Farm setup.

share|improve this question
up vote 1 down vote accepted

So Single Sign-On in Sharepoint 2010 is renamed to Secure Store Service. And the DLL is using Microsoft.Office.SecureStoreService.dll.

Here's the KB from Microsoft on how you can reference that DLL:



share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.