Build list legend
|Version of Microsoft Windows
|Windows-based Terminal Server
|x86, DEC Alpha
2006-12-31 (with Extended Security Updates)
|Windows NT Server 4.0
Windows NT 4.0 Terminal Server Edition (codenamed Hydra) is an edition of Windows NT 4.0 released on 16 June 1998, which allows remote solutions to applications on a server. Microsoft licensed the Terminal Server technologies from Citrix Systems, which already released a similar solution using Windows NT 3.51 Server under the name of Citrix WinFrame. As a result of this, Windows NT 4.0 Terminal Server Edition allows an upgrade from existing WinFrame installations, though this will cause WinStation connections to become disabled. The Terminal Server Edition was dropped with the release of Windows 2000 in favor of Terminal Services being integrated into mainline server releases.
This version ships with Service Pack 3 and can be regularly updated to Service Pack 6a. However, it utilizes service packs specifically designed for Terminal Server Edition, and is thus incompatible with regular Windows NT 4.0 service packs, though it is still compatible with other updates for Windows NT 4.0 Server.
Active Desktop of Internet Explorer 4 is also not installed if selecting the browser during setup, as it is incompatible with Windows NT 4.0 Terminal Server Edition.