Windows Longhorn build 4033 (idx01)

Windows Longhorn build 4033 (idx01) is a Milestone 6 build of Windows Longhorn. On 23 January 2020, this build was listed on a thread by UX.Unleaked blog founder Grabberslasher to be released to the BetaArchive FTP, and was later released in the sixth set of his 33 Longhorn/Vista builds on 29 January 2020, alongside Windows Vista build 5487. This build is currently only available in the IA-64 architecture.

This build was compiled in evaluation mode and can be installed on the current date.

Desktop Compositing Engine

 * While the Desktop Compositing Engine works in this build, the Desktop Compositing Engine does not enable Direct3D shaders due to a bug. Because the DCE window frames rely on these shaders to function, it is not possible to enable them at this time.

File Explorer

 * Search and cut/copy-pasting are broken as they cause  to crash.
 * WinFS is not present. Thus, applications relying on it, such as Outlook Express will crash upon launching.
 * USB Mass Storage is broken.
 * The file saving dialog is broken if  is running.

TCP/IP bug

 * The TCP/IP stack malfunctions most of the time.

Windows Product Activation

 * Windows Product Activation is missing.

Gallery
Some screenshots here are courtesy of BetaArchive user linuxlove.