Requirements

Thunderstone Search Appliance Manual

Requirements

Windows Server doesn't come with IIS enabled by default, make sure the Web Server (IIS)\Web Server role has been added.
IIS's web server role doesn't include ISAPI Extensions by default. Add the feature Web Server (IIS)/Web Server/Application Development/ISAPI Extensions to the role.

For the Proxy Module with the authProxy:

The Proxy Module with authProxy machine will need to be added to Internet Explorer's Local Internet zone, so if you have a server already listed there, you may want to use it.

This must be a separate machine from the Search Appliance, and the machine the Proxy Module is installed on must be a member of the Active Directory domain.

Ensure that the machine that the authProxy is being installed on is a secure machine. Because the Proxy Module is dealing with authorization functionality, a user with Administrative privileges could potentially tamper with operations.