Task Scheduler, Cron Error, Modernbill

[Starchild]

Running Plesk 8.2 on Windows 2003 Server with Modernbill 5.2.0. I'm using the Scheduled Tasks to run the cron. Script runs but nothing is updated in plesk.

PATH TO EXECUTABLE:
C:\Program Files\SWsoft\Plesk\Additional\Php\php.exe

ARGUMENTS:
-q -f"C:\[Path to Modernbill]\modernbill\app-modernbill-admin\sbin\runevents.php"

Plesk reports:
"Info: Scheduler task settings were saved. The task was launched successfully." Plesk Administrator email arrives with the "Utility's Output" text attachment. The attachment contains:
<br />
<b>Warning</b>: fopen(https://[PATH TO MODERNBILL]/app-modernbill-admin/events.php?action=765&amp;sid=8880202ab6da8d6882f8142d8f45960b25f051ec&amp;ajax=1&amp;systemQueueID=0&amp;continue=1&amp;started=1194554378) [<a href='function.fopen'>function.fopen</a>]: failed to open stream: Invalid argument in <b>C:\[PATH TO MODERNBILL]\modernbill\app-modernbill-admin\include\lib-action\events\RunEvents.php</b> on line <b>390</b><br />
[HEADERSx000167]: The HTTP headers have already been sent by one or more config files.
--------------------------------------------------
File:
Line: 0
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Tip: Open the file above in a text editor. Remove any spaces or new lines from the end of that file. Then try again.
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Can anyone tell me why this does not work. Big giant thanks in advance.

 

[andrey@]

Are you sure your script works without scheduler? Also possible reason scheduler user has no permission.

 

[Starchild]

That could be an issue but I doubt it. The Task Scheduler is set to run with Admin permission. I suspect that there is a simple parameter or syntax issue that is the culprit.

 

[andrey@]

Can you run your script manually without scheduler?