My product gets shipped with PHP binaries, dlls, php.ini in folder PHP.
Now I have updated the PHP binaries to recent version (5.3.6 from 4.33) in my installer package. So When the product is installed on existing installation (upgraded) the files under PHP directory gets replaced. But the config file php.ini gets updated by itself with new attributes instead of getting replaced totally.
How can I replace config file php.ini completely without just upgrading its contents?