IIS 7.0 introduced a new configuration system that is based on XML similar to that in ASP.NET.
I discussed this new configuration system in my book ASP.NET 3.5 Security, Membership and Role Management with C# and VB. However, I noticed on the IIS 7 website, a new page that is dedicated to explain all the XML elements in details.
Check it out at: http://www.iis.net/configreference
Enjoy!
Tags: IIS 7.0, IIS 7.0 Configuration System