PasasgePoint comes default with Apache web server, however passagepoint can leverage IIS as a front end 

1) We module license installed on the passagepoint server

With a passagepoint client, log in as the admin user, and do Home > configure > product licenses

if you do not see a web pre-Registration license, contact STOPware sales to purchase a web module license, then add here.

2) Once added, restart the passagepoint services

3) To test the web module, open a web browser on the same machine as the passagepoint server, and enter:

if you see this page, congratulations, passagepoint's web is up and running

4) To configure IIS as a front end to passagepoint, Pls see attached for the "How To" documentation

1) Intranet usage

If serving only intranet users (internal network only), IIS can be on the same machine as passagepoint

2) Internet usage

If there is a need to allow outside the network users to log in, it is recommended to put IIS on a secondary machine, and the machine should be put in the DMZ zone

See architechture below: