Monitor a directory for files older than 1hr

I need to monitor a folder that is the input for an automated system. If
the automation is hung we need to detect that files are not moving and send
an email. I am a super newbie to VB (just completed my intro course :))
Can anyone help point me in the right direction with some sample code?

Thank You
Cutter

url:http://www.ureader.com/gp/1677-1.aspx
.

Loading