IIS: Idle Timeout vs Recycle

问题

In IIS there are two areas (well, more than two) where recycling can occur:

1. Under the \"Process Model\" section → \"Idle Timeout\" (default 20 minutes)

and

1. Under the \"Recycle\" section → \"Regular Time Interval\" (default 1740 minutes)

My questions are:

1. What are the differences between the two methods?
2. What are the negative implications of settings them to 0?

来源：https://stackoverflow.com/questions/19985710/iis-idle-timeout-vs-recycle