Scheduled Task Status check

Hi,

Im trying to get Nagios to check Windows Scheduled Tasks by Status.

Basically i want to know when tasks are Disabled or Could Not Start so i need to monitor the Status field.

I found a script on the interweb that does what i need:

@schtasks /query /fo csv | find "Could not start" | find "Disabled" /V
@IF %ERRORLEVEL% EQU 1 goto NoFails1
@echo Fail:2 Task failed to Start
@EXIT 2

:NoFails1
@schtasks /query /fo csv | find "Could not start" 
@IF %ERRORLEVEL% EQU 1 goto NoFails2
@echo Fail:1 Task Failed but Disabled
@EXIT 1

:NoFails2
@echo OK:0 
@EXIT 0

Now i just need to be able to modify slightly so that it excludes all system tasks and only include manual tasks.

Snag....i have no idea how to do it! :)

Anybody able to chuck in the relevant bit of code needed to exclude system tasks please?

Batch file or powershell, i dont mind, its only in a batch file as thats what i found.

THANKYOU!