1) This document assumes you've laready setup passagepoint with IIS.

if not, pls review here and set up IIS with passagepoint first:

2) LDAP directory Link setup

PassagePoint uses LDAP to pull the SSO user from IIS and LDAP setup is required.

see here:

 Single Sign On via IIS's window's authentication using NTLM

PasasgePoint comes default with Apache web server, however passagepoint can leverage IIS as a front end  via NTLM authentication purposes for single sign on (SSO)

Pls review the attached "How To" doc to configure the IIS side.