From Misc Data Digs
Windows Vista is the not-so-beloved operating system from 2007 that tried to one-up Windows XP in every way, only to massively under-perform thanks to much heavier requirements than Windows XP and many devices having either buggy or incompatible drivers. Sadly, it gets more hate than it deserves - all of those issues were caused by incompetent computer manufacturers, not Vista itself.
Longhorn/Vista Beta Leftovers
Some leftovers from early beta versions of Vista are still scattered around the operating system.
Running XP explorer.exe on Vista
Using compatibility mode, you can make the XP version of explorer.exe the shell of Windows Vista. When doing this, clicking on the start menu shows a design of the start menu from a few early Vista builds, as well as the "log off" and "shut down" icons from XP.
The Microsoft Windows series
|DOS-Based Kernel||Windows 3.1 • Windows 95 • Windows 98|
|NT-Based Kernel||Windows 2000 • Windows XP • Windows Server 2003 • Windows Vista • Windows 10|