This Apache module makes it possible authentication/authorization to be done by an external program. The external program can be provided as a CGI, PHP or any other schemes which allow dynamic content to Apache.
BigApache for Windows is a free Enterprise Ready Server.
It is suitable for the semiprofessional use or for the program development of Html / PHP / Mysql / Perl / Python / ASP::Apache or Java projects (JBoss with Tomcat).