I am setting up moodle 2.5.2 and want to install a php accelerator to improve performance. I just don't know how you pick one and then how you install / configure it. Any help / how to guides would be great.

I have been looking at xcache as it seems to have a version compatible with windows and 5.3.27 just don't really know how to configure it.

I am using:

Windows server 2012
PHP 5.3.27