Hi,
first of all copy all files from the dlls directory in your system32 (NT/2K/XP) or system (98/ME) directory.
Some of the php extensions require to install additional software/libraries. Please post the dll's apache is missing if you start apache.
The php_* files should be in the extensions (c:\php\extensions) directory not directly in c:\php
There shouldn't be any 'missing php_???' messages at all if they are in the extensions directory.
Thomas