When uploading files in Wordpress, PHP uses a temporary upload folder. By default PHP will use the C:\Windows\Temp when uploading files. If you install PHP and Wordpress onto your Windows server then you might notice that any files uploaded through Wordpress are not accessible on your site. This is down to PHP taking the folder permissions from the C:\Windows\Temp folder which does not have public access granted on it (for obvious security reasons!).
At present if you install Wordpress as part of the Web Platform Installer it does not install PHPMyAdmin for you. Luckily this install is very easy to do.
Head over to http://www.phpmyadmin.net and download the latest installer to your server.
Once downloaded unzip the contents of the file and rename the folder to 'phpmyadmin'.
Copy this folder to your website containing Wordpress or php.
Open the file config.sample.inc.php into wordpad (notepad puts it all on one line) and enter in a new Blowfish_secret. It can be anything random like a password.