I am running FC4 and Apache 2.0.54. Installation instructions say: % perl Makefile.PL MP_APXS=$HOME/httpd/prefork/bin/apxs where MP_APXS is the full path to the apxs executable, normally found in the same directory as the httpd executable, but could be put in a different path as well. I can't find such a path. No apxs library, no prefork, etc... Where should I install it??? Trying the installation shows: perl Makefile.PL MP_APXS=$HOME/httpd/prefork/bin/apxs Reading Makefile.PL args from @ARGV MP_APXS = /root/httpd/prefork/bin/apxs no conflicting prior mod_perl version found - good. [ error] Unable to determine server version, aborting. [ error] Invalid MP_APXS specified? I don't know whether this helps: httpd -l says Compiled in modules: core.c prefork.c http_core.c mod_so.c Tia, Albert