Windows 2000 build 1515

Windows NT 5.0 build 1515.1 is the earliest leaked compilation of Windows NT 5.0 (2000). This build has been leaked only in Workstation (later called Professional) SKU. One of the most interesting features in this build is the "Show desktop" button on the end of the Taskbar (similar to what we can see on Windows 7's Superbar). It is also worth to note that Internet Explorer 4.0 Platform Preview build 4.71.0603.0 is included. The ACPI Driver is broken in this build.