Defraggler Auto-Shutdown

[kyomi7502]

I've found out through the docs site for defraggler that you can add the switch "/shutdown" to shutdown your PC after it finishes it's operations. This part works perfectly... my question is in two parts:

 

1. What is the "/ts" switch? (When looked at through Task Scheduler)

2. Is there a way to notify the user of shutdown with an option to cancel if they are still using the PC? (like using the windows shutdown.exe)

 

I was working with a few programs and completely forgot about the schedule and suddenly my PC shutdown without warning or even telling me.