The .htaccess directive will add additional extensions to those specified in httpd.conf, and so there should not be a conflict. However, if a handler is not specified, it may not work depending on your installation. Try adding the AddHandler directive I put above. If it still does not work, try adding the directives to the httpd.conf temporarily to test if the problem is with the directive itself, or if the server is ignoring the .htaccess file itself - you may have to re-enable that directive for .htaccess files.

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