this drives me crazy.
Visual Studio does not format Web.config the same way than IIS Manager, which prevent easy diffing of different versions or the same file editing in both tools.
When Visual Studio edits a Web.config thru a wizard (like adding a reference) or when you click on Edit\Format Document (Ctrl+K, Ctrl+D), Visual Studio formats the XML in a beautiful way.
Unfortunately, if you change a value in IIS, it will reformat it with a different style.
Do you know any workaround?