This plugin hasn’t been tested with the latest 3 major releases of WordPress. It may no longer be maintained or supported and may have compatibility issues when used with more recent versions of WordPress.

WinCache Object Cache Backend


This plugin is based on the code written by markjaquith for APC Object Cache Backend (

WinCache Object Cache provides a persistent memory-based backend for the WordPress object cache. WinCache must be available on your PHP install.

An object cache is a place for WordPress and WordPress extensions to store the results of complex operations. On subsequent loads,
this data can be fetched from the cache, which will be must faster than dynamically generating it on every page load.

Be sure to read the installation instructions, as this is not a traditional plugin, and needs to be installed in a specific location.


  1. Verify that you have PHP 5.2+ and a compatible WinCache version installed.
  2. Copy object-cache.php to your WordPress content directory (wp-content/ by default).
  3. Done!


What is WinCache?

WinCache is a Windows-optimized extension for PHP which significantly improves performance of PHP applications by using byte code, file and object caches. More information about using WinCache can be found in PHP documentation:

Where can I download latest version of WinCache from?

WinCache extension for PHP can be downloaded from

I share `wp-config.php` among multiple WordPress installs. How can I guarantee key uniqueness?

Define WP_APC_KEY_SALT to something that is unique for each install (like an md5 of the MySQL host, database, and table prefix).


September 3, 2016
Just migrated the entire server to Windows Server 2012R2, PHP5.6, MySQL5.6 and WinCache 1.3 Installed as instructed and it is still doing its job!
Read all 1 review

Contributors & Developers

“WinCache Object Cache Backend” is open source software. The following people have contributed to this plugin.




  • Fixed a typo bug when calling Flush() function


  • First version in SVN based on markjaquith’s APC Object Cache plugin.