What windows 7 task scheduler event would respond to an idle END condition?
Solution 1:
I don't think it is possible to implement any methods to detect a trigger "border" on idle events(enter or exit from idle state), however there is a command that forcer your Windows to enter on idle state and run idle triggered tasks:
Rundll32.exe advapi32.dll,ProcessIdleTasks
You could combine another event(from event log) to run this command which in turn trigger another task that must be runned on idle state. As far you know you can freely combine any tasks that you may want.