Windows NT 4.0

Windows NT 4.0 (codenamed Shell Update Release) is the successor to Windows NT 3.51 and the first version of Windows NT to feature the Windows Explorer interface introduced in Windows 95. It is the last version of Windows NT to include NT in its product name. It was succeeded by Windows 2000.

The Windows Desktop Update further enhances the shell by incorporating features from Windows 98.

Editions
There are several editions of Windows NT 4.0:


 * Workstation
 * Server
 * Server, Enterprise Edition
 * Server, Terminal Server Edition
 * Embedded

Service Packs
There were 6 service packs released for Windows NT 4.0. The last had been pulled by Microsoft due to a severe bug, which results in the revised Service Pack 6a. There was a 7th Service Pack planned, but it was cancelled and an Update Rollup was released instead in 2001.

Clouds Easter egg
Windows NT 4.0 contains the Clouds Easter egg from Windows 95; like in Windows 95, it is implemented in, and the steps to show it are much like in Windows 95: create a new folder, name it  , rename it to  , rename again to  , rename finally to  , open folder. ("95" was replaced by "NT")

The text is in 's resource   and XORed with   as an obfuscation measure.

For similar reasons, the easter egg folder names are stored in the  section of   as custom hashes of the old folder name concatenated with the new folder name.

This was implemented by build 1175 and there shows the "SUR Shell Team" and "SUR Shell Test Team"; at some point after that the text was replaced by a message informing that "you won't find the credits here".