The zabbix agent won't start after a normal start of the server on Windows 2008 R2. The issue is global of all Windows servers. The log of Zabbix agent is not written by executable (tested with debug level 5), the delayed windows service functionnality not help. When the Zabbix agent service want to start, Windows log in event log an EventID 7000 :
The Zabbix Agent service failed to start due to the following error:
The service did not respond to the start or control request in a timely fashion.

and an EventID 7009 :
A timeout was reached (60000 milliseconds) while waiting for the Zabbix Agent service to connect.

But the timeout was up to 60000ms from 30000ms and the issue still here.

In addition, the service start without problem if you start it manualy

I attach my zabbix agent conf file.

Thank you for support !