Exchange 2013 : Autodiscover & ZeroConfigExchange (Outlook 2013)

Hi,

1. Does enabling Exchange Autodiscovery actually set the ZeroConfigExchange to 1?

Refer this article: from reading enabling Autodiscovery actually set the ZeroConfigExchange to 1. This is for Outlook 2007/2010 only or it is application for Outlook 2013 when Autodiscovery is enabled on Exchange 2013?

2. Under what circumstances that we need to manually create the ZeroConfigExchnge as per this article?

Thank you