Configuration Variables Not in Documentation & CGI Timeout on Install

I’m getting a CGI timeout trying to run the install on my server. I’m not sure if there’s a connection, but there are several variables in the wp-config.php file that are not discussed in the documentation. Is there a connection?
The server is running Windows Server 2003 with relevant directories as follows:
C:\PHP
C:\Program Files\MySQL
E:\Websites\MYWEB\wordpress
E:\MySQL databases\blog

The wp-config.php is:
<?php
// ** MySQL settings ** //
define(‘DB_NAME’, ‘blog’); // The name of the database
define(‘DB_USER’, ‘myname’); // Your MySQL username
define(‘DB_PASSWORD’, ‘mypass’); // …and password
define(‘DB_HOST’, ‘localhost’); // 99% chance you won’t need to change this value

// Change the prefix if you want to have multiple blogs in a single database.
$table_prefix = ‘wp_’; // example: ‘wp_’ or ‘b2’ or ‘mylogin_’

// Change this to localize WordPress. A corresponding MO file for the
// chosen language must be installed to wp-includes/languages.
// For example, install de.mo to wp-includes/languages and set WPLANG to ‘de’
// to enable German language support.
define (‘WPLANG’, ‘EN’);

/* Stop editing */

define(‘ABSPATH’, ”);
require_once(ABSPATH.’wp-settings.php’);
?>

Only the DB_NAME etc are discussed in the documentation and I’m very unclear on what the other variables should be set to. When I go to the install.php with my IE browser it cooks for a couple of minutes then crashes with a “CGI Timeout” message.

Are these variables set correctly? Are they part of the problem? I’ve tried remarking them out with the same result, so I don’t think so, but one never knows.

Thanks