Windows Longhorn build 4030 (main)

Windows Longhorn build 4030 (main) is a Milestone 5 build of Windows Longhorn. On 2020-01-23, this build was listed on a thread by UX.Unleaked blog founder Grabberslasher to be released to the BetaArchive FTP, and was released in the eleventh set of his 33 Longhorn/Vista builds on 2020-02-03 in the Home and Professional SKUs, along with Windows Vista build 5808. It was compiled four and seven days before its Lab06 counterparts 4030.Lab06_n.030630-1724 and 4030.Lab06_n.030702-1727 respectively. This build is the earliest leaked Home Edition pre-reset build of Longhorn.

Under the Home SKU, the default user is "Owner" instead of Administrator on Professional installs.

Features
Overall, this build has a similar feature set as 4029.main such as:
 * Full 3D Views with Panorama.
 * Spinning icons when 3D View is in effect.
 * Explorer Carousel view.
 * Partial DCE functionality.

Bugs
The "CD Writing Wizard" does not appear when opening a .ISO disc image.