Portal Web Server for Intranet Clients
A portal is not required to support Windows NT authentication. You can enable Windows NT authentication directly on the web site.
Single sign-on is only supported when the user that logs into IIS has been imported into the Workflow Manager database using Active Directory. The administrator can either import the complete group or only one user. If a complete group is imported, then all the members of the group can be logged into Workflow Manager using single sign-on.
The system requirements for this machine are the same as for the Workflow Manager Web Server.