Document of how to configure Application Initialization module

Hi,

I've been trying to find document for how to configure Application Initialization module for a few days, and cannot find clear document.

I do find a few helpful posts, and can guess some information, but I hope I don't have to program by luck.

I found in this sample  http://www.iis.net/learn/get-started/whats-new-in-iis-8/iis-80-application-initialization these configurations,

<applicationInitialization
    remapManagedRequestsTo="Startup.htm"
    skipManagedModules="true" ><add initializationPage="/default.aspx" /></applicationInitialization>

The answer I'm looking for is, what are the meanings of those tags? and what is the schema of the configuration section.

For example, what does remapManagedRequestsTo mean? what does skipManagedModules mean? what does initializationPage mean?

I found some helpful info here http://blogs.msdn.com/b/amol/archive/2013/01/25/application-initialization-ui-for-iis-7-5.aspx

However, I don't want to rely on a third-party tool's document to understand a feature inside IIS. I want authorized document from IIS.

Have any one find official document explaining what is the meaning of those configuration tags?

Many thanks in advance,

/Kai