ben, thank you for pointing me in the right direction. the only difference i see between my call(s) to ap_sub_req_lookup_file and the call(s) within mod_include is the inclusion of the filter parameter. maybe my understanding of filters is incorrect. are filters only used to modify response content or are filters required to concatenate subrequest content for the response?
peter ________________________________ From: Ben Noordhuis <i...@bnoordhuis.nl> To: modules-dev@httpd.apache.org Sent: Tue, September 14, 2010 9:39:39 AM Subject: Re: ap_sub_req_lookup_file vs ap_sub_req_lookup_uri ap_sub_req_lookup_file() should work, it's what mod_include uses when you have <!--#include file="/foo/bar"--> on your page. You might want to take a look at its source.