I started my new position with McAfee last week and got a brand new Windows 7 laptop. To get my development environment up and running I had to install PHP, MySQL, and Apache. I ran into a problem with the mysql extension for PHP.
PHP Warning: PHP Startup: Unable to load dynamic library 'c:/server/PHP/ext/php_mysql.dll' - The specified module could not be found.\r\n in Unknown on line 0
The extension could not be found and was skipped at startup. After lots of Googling I found that copying the the file libmysql.dll from the PHP install directory to C:\Windows\system fixed the issue.