Trouble with check_nt and diskspace

All information is working and being shown on the web interface. but I don’t think that it is sending out notifications. I am using NSclient on my windows boxes.
I am using the the check command

In trying to reproduce a critical state I have changed both numbers from 1% and 2% as far as 98% and 99%, because i was not sure what the exact thresholds need to be. the output i am receiving in nagios is
** c:\ - total: 74.44 Gb - used: 8.46 Gb (11%) - free 65.98 Gb (89%) **
notifications do work for hard state changes. Can someone please point me in the right direction?

Did you configure it to send out notifications?