xbithack causes parsing of html-files by PHP instead SSI

Hi! Problem: see subject I posted the problem to php's bug-db but <yohgaki@php.net> answered: "The bug system is not the appropriate forum for asking support questions. For a list of a range of more [...] With xbit hack, you are supposed to parse by PHP." BUT: On our old server-install (PHP 4.0.4pl1, Apache 1.3.19 xbithack on), all .html-files with xbit were SSI-parsed. Now, on our new server install (PHP 4.1.1, Apache 1.3.20 xbithack on), all .html-files with xbit are PHP-parsed! In Apache's documentation one can read that xbithack should enable SSI (and not PHP). If I follow <yohgaki@php.net>'s answer, it should be normal that the files are PHP-parsed. First question: If this behaviour is normal, why didn't I found anything about it in the PHP-docs? Have I overread that part? Second question: If this behaviour is normal, why were the files on our old server SSI-parsed and now PHP-parsed? How can I change this behaviour (to enable SSI-parsing)? Thanks for your help. Tobias Wiersch from germany