Using Wincache with Zend Framework 1.12.x

Question

I'm trying to check if wincache is working properly in my zend framework 1.12 project and don't really get output by the wincache.php skript.

I'm on Windows 8 and Run IIS8 with PHP 5.3 and Wincache. phpinfo() shows wincache 1.3.4 is installed properly and working.

I also don't get any error messages or exceptions from Zend Framework telling it to use the backend 'Wincache'.

Zend_Cache::factory(
    'Core',
    'Wincache',
    array(
       'caching' => 1, 
       'lifetime' => '3600', 
       'automatic_serialization' => 1),
    array(
       'cache_dir' => 'C:\Projects\website\application\cache', 
       'file_locking' => 1, 
       'read_control' => 1, 
       'read_control_type' => 
       'adler32', 
       'ignore_user_abort' => 1));

Then I created a route and included the wincache.php script code in the view. But this shows no cache hits.

Any clue what I'm doing wrong?