Windows Longhorn build 4074

Compiled on 2004-04-25, this build is the first Milestone 8 build and the most famous build of Longhorn as it was distributed publicly. The Slate theme is still present, but with a new wallpaper known as Leaves. It also has a 64-bit build, similar to 4051. 4074 also has a new theme called Jade, this theme slightly changes the appearance of the taskbar and enables native Aero transparency, which has not been seen since 4039.