IIS6 Metabase Property to IIS7 Configuration Mapping
Here is some useful documentation I stumbled upon which may be of interest. If you're ever wondering "where did that IIS6 metabase property go?" as you stare at the applicationHost.config or web.config file, look no further than this MSDN documentation for a complete mapping: http://msdn.microsoft.com/en-us/library/aa347565.aspx
Note: you may need to use this document in conjunction with the schema files in \windows\system32\inetsrv\config\schema in order to know where the configuration section lives, what type it is, defaults etc.