APC On XAMPP
I was able to get APC installed on my local server today. This was strongly suggested for Symfony 2 and I've been seeing so much slowness in XAMPP I gave it a try. The reference link brought me to a download page, but Symfony wanted an even newer version so I had to do more digging.
The set up needed php_apc.dll in /xampp/php/ext and edits to php.ini and Apache httpd.conf. I reinstalled Symfony2 with the latest version and started over today.