here are a few observations on your httpd.conf settings .. there might be more I have missed ..
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suggestion .. bound your changes to httpd.conf with commented lines like this so changes to default httpd.conf can be viewed easily .. might be better to start with a fresh httpd.conf file ..
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see your line 883 and 826 (which are commented out) .. choose one of the below (for PHP4 or PHP5)
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for PHP4
LoadModule php4_module "c:/php/sapi/php4apache.dll"
AddType application/x-httpd-php .php .php3 .phtml
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for PHP5
LoadModule php5_module "c:/php/php5apache.dll"
AddType application/x-httpd-php .php .php3 .phtml
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[note: different apache.dll's are used if you progress to using Apache 2]
line 151 insert
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Listen 127.0.0.1:80
although default listens on port 80 this line can be changed if port number is changed
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line 301
DocumentRoot "C:/php/"
change to
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DocumentRoot = "C:/Program Files/Apache Group/Apache/htdocs"
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line 329
<Directory "C:/php/">
change to
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<Directory "C:/Program Files/Apache Group/Apache/htdocs">
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can't see DirectoryIndex
insert
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DirectoryIndex index.html index.php
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stop and restart server and check phpinfo.php again .. you might have to edit php.ini too.