DVD Sentry - Can't uninstall

Hi, I have a problem.  My husband's computer has the DVD Sentry program on it.  It's never used because he doesn't put DVD's in.  I decided to uninstall it.  I went to add/remove programs and clicked to remove.  It starts to remove and then I get a clicking sound and it says canceling and won't uninstall.  I tried to reboot and did it again and got the same thing.  So now I'm back to just having it disabled from running at startup.

 

I really would like to uninstall it.  Any ideas?

Lisa