Scheduler is not working

Hello everyone,
Please help me…
I created a batch file with commants-
cd C:\xampp\htdocs\crm
C:\xampp\php\php.exe -f C:\xampp\htdocs\crm\cron.php
when I run this batch file on command prompt of windows it will show error-
“bad data passed< my crm site/crm>Return to home page”.
I created my windows task for this batch file which runs after every 1 minute.
But my Nightly mass email campaign run only once.

Please Help me … :frowning:
What should I have to do …
I am working on 7.7.3 version.
Please suggest me some idea .