Unable to load dynamic library

Hi there,

When I try to connect to mysql, I get:
Fatal error: Call to undefined function mysql_connect() in D:\www\kviz
\scripts\data_connect.php on line 3
PHP Warning: PHP Startup: Unable to load dynamic library 'C:\PHP\ext
\php_mysql.dll' - The specified module could not be found. in Unknown on
line 0

BUT, the interesting thing is that in my C:\PHP\ext there exists
php_mysql.dll. Sooo, why can't PHP load it?

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I'm left to drift on a dead calm sea
And watch her forever through the cracks in the beams
Nailed across the doorways of the bedrooms of my dreams"