win32service on php 5.4

Hello,
I'm trying to migrate from 5.3 to 5.4, but I hit a road block
I'm using this ext:http://windows.php.net/downloads/pecl/releases/win32service/0.1.0/
According to the documentation:http://www.php.net/manual/bg/win32service.constants.php
This one should exist:
​WIN32_ERROR_CALL_NOT_IMPLEMENTED
but I get this:Notice: Use of undefined constant WIN32_ERROR_CALL_NOT_IMPLEMENTED - assumed 'WIN32_ERROR_CALL_NOT_IMPLEMENTED' in C:\xxx\win32_service.php on line 70
Unfortunately none of the example code works either:http://www.php.net/manual/bg/function.win32-set-service-status.php
The service won't start even after I replace WIN32_ERROR_CALL_NOT_IMPLEMENTED with WIN32_SERVICE_RUNNING
Can anyone please test this ?
ThanksMomchil