WP Super Cache V0.98 and IIS7

Today I installed the WordPress plugin WP Super Cache on IIS7 version 0.98. Let’s just say it was not all that fun, and I had to use a number of resources to get it working. Many thanks to Peng-Fei’s blog entry, which got me started, but didn’t quite take me over the finish line. The WordPress plugin help pages also added some info, but a couple of things I had to figure out myself.

Getting WP Super Cache V0.98 running on IIS7

• Install the plugin as any other plugin
• Give full access to your IIS_IUSRS (or whichever user you have configured ).
  • Activate the plugin
  • Goto the plugin configuration page in WordPress.
  • This should generate advanced_cache.php and wp-cache-config.php in the wp-content folder.
  • If these files are note generated, you should see an error in wordpress, and probably have to play with the user access rights until they ARE generated on a page reload.
• Set the access rights back as they were before.
• Now, I had a bug in the advanced-cache.php script. It uses CACHEHOME, but the variable is called WPCACHEHOME, so I tried changing this variable name throughout the file.
  • However, that didn’t work. Instead, I had to set the path explicitly in this file, like this:

<?php

# WP SUPER CACHE 0.8.9.1

function wpcache_broken_message() {

if ( false == strpos( $_SERVER[ 'REQUEST_URI' ], ‘wp-admin’ ) )

echo “\n<!– WP Super Cache is installed but broken. The path to wp-cache-phase1.php in wp-content/advanced-cache.php must be fixed! –>”;

}

if ( !include_once(  ‘wp-content/plugins/wp-super-cache/wp-cache-phase1.php’ ) ) {

if ( !@is_file( ‘wp-content/plugins/wp-super-cache/wp-cache-phase1.php’ ) )

register_shutdown_function( ‘wpcache_broken_message’ );

}

?>