Windows XP SP1 source code leaked, reveals a hidden ‘Candy’ theme

Alleged source code for Windows XP leaked online this week. First appearing on the 4chan anonymous board, the file data also includes most of the previously leaked product source codes, like Windows Server 2003, MS DOS 3.30, MS DOS 6.0, Windows 2000, Windows CE 3, Windows CE 4, Windows CE 5, Windows Embedded 7, Windows Embedded CE, Windows NT 3.5, Windows NT 4, and Xbox.

Windows Xp Bliss Wallpaper

The source codes seem to be legitimate at least for Windows XP SP1. Many enthusiasts have started learning the files. As you may already know, the theme engine in Windows XP was a major update to the OS, that also introduced support for third-party themes, and delivered lots of fun. Albacore have already shared some interesting findings regarding how the theme engine works in Windows XP:


Also, The Verge have discovered a new secret hidden theme in the leaked sources. For its internal use, Microsoft has created a new theme 'Candy', which replicate the  appearance of Apple's MacOS X Aqua. Here is how it looks.

Windows XP Candy Aqua Theme

Windows XP Candy Aqua Theme 2

The theme was never released to the public, and remained unknown till now. For a note, there are other pre-release themes known to be used in Windows XP, code name "Whistler". Those include Watercolor, a colorful theme called "Test", and a number of Luna theme variations.


Windows XP Whister Watercolor Theme 2

Windows XP Whister Watercolor 1


Windows XP Whister Test Theme Version 1 Windows XP Whister Test Theme Version 2

Luna, one of the pre-release versions of the default Windows XP themes

Windows XP Whister Luna Pre Release Theme

The leak can expose possible vulnerabilities in remaining Windows XP-based components in modern Windows versions. Windows XP has been discontinued by Microsoft in 2014, so it doesn't receive security updates these days. The leak can make it more vulnerable and extremely unsafe for daily use.

The Redmond software giant is currently investigating the leak incident.

Whistler theme screenshots are from


6 thoughts on “Windows XP SP1 source code leaked, reveals a hidden ‘Candy’ theme

  1. Rick Grunwald

    Nice catch! Some of the themes were beautiful

    1. Sergey Tkachenko Post author

      Watercolor was interesting. Unfortunately, it has disappeared in sands of time.

  2. Dave

    We actually still run XP on one Laptop in the garage that is ‘off the grid’. We use it for automotive repair manuals (in pdf form) and to play music with it’s 20 year old 2.1 creative speaker system.

  3. Philip

    Windows XP can do so much ! I’d love to see a XP machine running in my home with exFAT support.

  4. Eugene MC

    Where I could get or download or open this themes?

    1. Sergey Tkachenko Post author

      Sharing that stuff is illegal.


Leave a Reply

Your email address will not be published. Required fields are marked *