John Mertic quickly notes that the Windows installer for the latest PHP release (5.2.5) is now working correctly:

Thanks to a missed CVS commit, Bug # 43230 came up b0rking the installer last week. I rebuilt it and updated it at http://www.php.net/downloads.php (with big thanks to Derick Rethans for the karma and help finding my way to get it updated).

You can download both these new Windows packages and the current source code builds from the PHP.net downloads section.