The most radical feature that makes Build 5111 famous is the .

Windows Neptune Build 5111 is the only leaked version of a cancelled "Home" version of Windows 2000 that never saw the light of day. While it looks like a reskinned Windows 2000 on the surface, it contains the DNA of what eventually became Windows XP. The Missing Link in Windows History

Features a simplified login interface and a "personalization" screen (known as Activity Centers). Installing and Running Windows Neptune Build 5111.iso

The build is "timebombed." You must set your virtual machine's BIOS date to December 26, 1999 , or earlier, or it will fail to install YouTube . Installation Steps

Allocate between 128 MB and 256 MB. Exceeding 512 MB can cause memory overflow bugs during setup.