Note 66: The same is true [that the GetVersion API can return a "backwards compatible" version] also on Windows XP and other versions of Windows, but with more specific new features available on Vista, the issue becomes more relevant. On this topic see also Tim Anderson's blog post “The tangled web of Windows Vista versioning and compatibility” at http://www.itwriting.com/blog/?p=103.
This blog post is part of my "113 Delphi 2007 Handbook Notes" blogging project, to promote my new Delphi book.