Neptune was the supposed successor to Windows 98 and was to be the introduction of the NT kernel for home users.
It’s mostly the same as the Windows 2000 install, makes sense considering both were being developed at the same time, and have a lot in common in terms of visual elements.
When you first login you are presented with this dialog box. You can enter your name or just close it. It does not seem to make a difference.
One issue with this build the the Still Image Service which is faulty in this build and causes a minute hang at startup. This can be disabled without any consequence though the Service management panel (Start, Run, Services.msc)
Once disabled the system will startup and login without any delays or freezing.
Windows Media Player 7, very identical to the Windows ME version
Windows Explorer has had a slightly new design bringing it closer to the 2000 interface.
Viewing the activity zones in Internet Explorer
Setting the Activity Zones as an Active Desktop background. This may have been the intended use. A lot of the items listed on the activity zone were integrated onto the Windows XP start menu. Shortcuts to the Documents, Music and photos appear here also appears on the XP start menu. E-Mail and Internet shortcuts also appears on the XP start menu where they would show the default respective applications at the top of the stat menu. So one could assume the activity centres made their way somewhat by being embedded in the Start menu.
Customising the desktop activity centre
Alternative background theme
The login screen, the Ctrl+Alt+Del style screen still exists and can be re-enabled.
Unreal Tournament runs somewhat, the mouse aiming is broken partially due to the way Virtual-box captures the mouse, might see if this works better in PCem or 86box instead.
Sadly Neptune did not have a bright future and was scrapped in favour of Windows ME, which was identical to 98 with a few refinements and bringing Windows explorer design inline with 2000. It wouldn’t be until the release of Windows XP (Whistler) when home users would get to take advantage of Windows NT.