e-novative PHP is a free PHP installer provided by e-novative, one of the first companies creating commercial software based on PHP. It installs and configures Apache, MySql, PHP and phpMyAdmin on Windows NT, Windows 2000 or Windows XP .
A support forum is available .
(Update): They also provide a “Professional multi-format publishing of DocBook XML documents? Try the free e-novative DocBook Environment (eDE)” .