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

Windows Xp Bliss Wallpaper Icon

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.

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.

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.



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

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

Support us

Winaero greatly relies on your support. You can help the site keep bringing you interesting and useful content and software by using these options:

If you like this article, please share it using the buttons below. It won't take a lot from you, but it will help us grow. Thanks for your support!

Author: Sergey Tkachenko

Sergey Tkachenko is a software developer who started Winaero back in 2011. On this blog, Sergey is writing about everything connected to Microsoft, Windows and popular software. Follow him on Telegram, Twitter, and YouTube.

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

  1. 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.

Leave a Reply

Your email address will not be published.

Exit mobile version
Using Telegram? Subscribe to the blog channel!
Hello. Add your message here.