Windows Neptune Build 5111

Screenshots

Release notes

Build 5111 is the only leaked build which was titled the Microsoft Neptune Developer Release and has a version number of 5.5.5111 (which Windows XP and 2003, 5.1 and 5.2 respectively will see as a newer version).

The login screen was overhauled and had a friendlier full-screen version similar to what shipped with XP, however in Neptune the login screen is an HTA (Hypertext Application - a.k.a. HTML and JavaScript) and not based on DirectUI. Installing IE 6.0 on this build may cause the login screen to cease functioning. Users can have account pictures attached just like in XP. The login screen was improved upon and included in later builds of Whistler (such as 2211).

Neptune allowed for additional account types: Owner, Adult, Child and Guest. The Child account type had safeguards such as Internet content filtering and limited access time. Control of user accounts was through the Windows Identities control panel and was again an HTA.

The help and support center was directly brought over from Windows ME and much of the Millennium branding remains.

Installation instructions

Use a BIOS date of December 11, 1999.

Windows Neptune is slow to load after logon due to a misbehaving service.