When you perform an in-place upgrade from Microsoft BizTalk Server 2009 or BizTalk Server 2010 to BizTalk Server 2013, Enterprise Single Sign On (SSO) is not upgraded on the same computer.
If this issue results in the SSO Master Secret Server not being upgraded, attempts to upgrade other BizTalk servers in the group will fail, and you will receive the following error:
Also, any component of BizTalk Server that references Microsoft.BizTalk.Interop.SSOClient.dll can fail with the following error:
If this issue results in the SSO Master Secret Server not being upgraded, attempts to upgrade other BizTalk servers in the group will fail, and you will receive the following error:
Please upgrade your master secret server
Also, any component of BizTalk Server that references Microsoft.BizTalk.Interop.SSOClient.dll can fail with the following error:
Could not load file or assembly ‘Microsoft.BizTalk.Interop.SSOClient, Version=7.0.2300.0