However, the code became so unstable and unmanageable that Microsoft scrapped years of work in 2004, resetting development to use the Windows Server 2003 codebase as a stable foundation. This revised project eventually launched in late 2006 as . Legacy and Build Collections
: Longhorn was developed for both 32-bit (x86) and 64-bit (x64 and IA-64) systems. However, the code became so unstable and unmanageable
: Builds are categorized by "Milestones" (M1 through M7) and "Beta" phases, documenting the shift from the original vision to the post-reset Vista era. However, the code became so unstable and unmanageable