test module mod_auth_sspi or mod_authnz_sspi.so in Apache 2.2 or 2.4 on Windows host

.htaccess

<IfModule mod_authnz_sspi.c> 
    AuthType SSPI 
    SSPIAuth On 
    SSPIAuthoritative On 
    SSPIOfferBasic Off 
    Require valid-user 
</ifModule> 

<IfModule mod_auth_sspi.c>
    AuthType SSPI
    SSPIAuth On
    SSPIOfferBasic Off
    SSPIAuthoritative On
    require valid-user
</ifModule>

httpd-apache2.2.conf

 # Módulo NTLM
# informações da página do Moodle - http://docs.moodle.org/en/NTLM_authentication
# e do mod-auth-sspi - http://sourceforge.net/projects/mod-auth-sspi/files/

LoadModule sspi_auth_module modules/mod_auth_sspi.so

httpd-apache2.4.conf

 # Módulo NTLM para Apache 2.4
# informações da página do mod-auth-sspi - http://sourceforge.net/projects/mod-auth-sspi/forums/forum/550583/topic/4868892
# e do apachehaus - https://www.apachehaus.net/modules/mod_authnz_sspi/

LoadModule authnz_sspi_module modules/mod_authnz_sspi.so

index.php

<?php
error_reporting(-1);
ini_set('display_errors', '1');
ini_set('default_charset', 'utf-8');
date_default_timezone_set('America/Sao_Paulo');

var_dump($_SERVER);