Windows Longhorn build 4033 (main)

Windows "Longhorn" build 4033 (with a build tag of 4033.main.030717-1555) is a Milestone 6 build of the Microsoft Windows "Longhorn" operating system. Aero Wizards debuted in this build with the CD Writing Wizard, which allowed users to burn ISO images to disc.

This build was among the first builds to include the bright, red aurora wallpaper, and also included 3D icons within the Games Center (later renamed as the "Games Explorer").

This build, compiled of 2003-07-17, is the first build in Milestone 6. The desktop clock of the previous build has been removed and the Sidebar clock has been made more noticeable. The build string still has Pig Latin.

As with 4029, Windows XP theme is present, but will still display Plex taskbar and sidebar. The desktop also has a new icon, File a Longhorn bug, which leads to a webpage.