Solved: user account control

I have a backup program (ntbackup) that used to run fine on XP and 7. I ran it every night using the task scheduler to take automatic backups of important stuff. Now on Windows 8 it requires admin authority. I've no idea why but is there some way I could permanently authorize this program? It still works great except that I have to run it manually and respond to the user account control for it to continue. Is there any way to avoid this? Or is there some way to make the task scheduler pre-stage a response to the UAC query?