smh

Template Document Processor: PHP 5.1.6
Server: Apache httpd 2.0.55 (Win32)
Database Server: MySQL 5.0.26-community for Win32
Operating System: Windows XP Pro SP2

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I just installed PHP and MySQL on my laptop for development purposes.

The following directives are set in php.ini (Windows config file):

extension=php_mysqli.dll
extension_dir = "c:\php\ext\"

No other extension is set (for the time being).

The Visible Problem:

When Apache is (re)started, the following error alert appears:

PHP Startup: Unable to load dynamic library
'c:\php\ext\php_mysqli.dll' - The specified
module could not be found.

The following is true:

1. PHP was installed in the path "c:\php" in Windows
2. I virtually copied and pasted the "c:\php\ext" into the
extension_dir directive within php.ini
3. There is a file 'php_mysqli.dll' within the 'ext' subdirectory
also copied and pasted to avoid keyboard entry errors
4. I comment out the 'extension=php_mysqli.dll' and
set another extension (=php_tidy.dll) that exists and there is
no alert when Apache is re-started.
5. The MySQL daemon (service) is running during all of this.

Items 1-4 make what I am seeing appear odd and frustrating to me.

What am I missing?