Apache 2.2 and PHP5 on Windows "Unable to Load Dynamic Library"

Sometimes even the most up-to-date software have also bugs due to their heavy development process. If you try to install Apache (2.2.3) and PHP (5.2.0) you may find following error message in your Apache error log:

PHP Startup: Unable to load dynamic library 'C:\PHP5\ext\php_mysql.dll' - The specified module could not be found.

Solution

Copy C:\PHP5\libmysql.dll to C:\Program Files\Apache Software Foundation\Apache2.2\bin

The same can be said for other modules; just perform the sames steps above for whichever modules Apache claimes it cannot find.  Of course, adjust your paths where appropriate for your installation.