Windows Neptune Build 5111.iso !new! -

: Early versions of "Fast Boot" (Profile-Assisted Boot Accelerator) and "Prefetch" were included to speed up system startup and application loading, technologies that became staples in XP and beyond. Technical Quirks and the "Timebomb"

Build 5111 is the only officially leaked developer release of Neptune. While it largely resembles a "skinned" version of Windows 2000, it contains several visionary features that were far ahead of their time: Windows Neptune Build 5111.iso