i think its not possible, unless your webserver is configured to run files that have a .html extension as php files
Can you explain a lil further do you need mod rewrite or integrate some html into php? If you want the extension of html to be recognized as php it's not a good idea...
This kind of thing shouldn't go in the business section. Anyways, put this in your .htaccess file. AddHandler x-mapp-php4 .html .htm AddHandler x-mapp-php5 .html .htm
hmm, i guess there's no use telling, but that will put extra stress on your webserver, but i guess it wont matter if you only have a few files