Group: Forum Members
The functions "Restore and "Explore" are implement by a shell menu extension that is supported on Windows XP+.
The explorer columns are implemented by a shell column extension that was deprecated with Windows Vista. However, this API still works for backwards compatibility.
There is a work item with the development team to support the Windows Property System (Vista+) that provides the same functionality of the shell column extension. The Windows Property System will not be effected by the Windows upgrade process.