I have installed zabbix server on ubuntu virtual box machine and zabbix agent in windows host.
I want to a monitor a windows log file in zabbix server.
When i configure a log item on server with key log[C:\zabbix\test.log,time] it works.It gives the lines containing the word "time".

I want to pick a number in that particular line. So i want to use the output parameter.
But if i give the log key as log[C:\zabbix\test.log,"prerender() timetaken[0-9]+)",,,\1] it does not work.

In Zabbix agent it shows error as "active check "log[C:\zabbix\fleethealth.log,"prerender() timetaken[0-9]+)",,,\1]" is not supported

Please help me on this.Any other changes needs to be done,to make this work