NOTE : Before you even read about this module, I want to mention that I do not work for IIS product team at Microsoft, but in Product Support for IIS and ASP.NET. This module/application is purely out of my interest, and this is not an official release by Microsoft and hence NOT supported by Microsoft Services.
When I wrote my BackupRestore module UI module a while back, many people asked for few modifications, with the ability to take a complete backup of all the IIS configurations – because some of the IIS configurations can now lie within the individual web.configs of the applications…
Read the rest of the post here - http://blogs.msdn.com/rakkimk/archive/2009/06/08/iis7-improved-backup-restore-tool-and-a-ui-module.aspx