I've found the guidance here how to start with Zend Acl, going throuh the steps of the best answer but I've become stuck on this operation:
Final steps are loading your configAcl.php and register the AuthPlugin in bootstrap file (probably index.php).
When I start my application, it tells me
Fatal error: Class 'AuthPlugin' not found in C:\Program Files (x86)\Apache Software Foundation\Apache2.2\htdocs\myproject\public\index.php on line 28
but I have put this plugin in applications/plugins folder. I'm new to Zend Framework and using v.1.12 (because I didn't find out how to create project in new version: the command-line app in bin folder was missing).
Maybe I have to edit my Bootstrap.php file, but I don't know how. Every instruction I found looks like for another version of framework, because the code in their public/index.php is very different from mine.