Hyena - Provides Windows NT administrators a single, centralized interface for system management functions. Working with one or more domains, NT/2000 administration is simplified. Object and hierarchical list displays. - http://www.systemtools.com/hyena/
Georgia SoftWorks Windows NT Telnet Server - Telnet server for Windows NT that supports data stream encryption, network enable DOS legacy applications with color support, downloadable 30-day trial, by Georgia SoftWorks. - http://www.georgiasoftworks.com/
Microsoft Corp.: Windows NT Server 4.0 - MS official page, containing product information, technical resources, downloads, support and links to related sites. - http://www.microsoft.com/ntserver/
NeoHIGH - Software to coordinate two servers, forming highly available NT server clusters. When one server is down or unavailable, the peer server will take over automatically and transparently. Users experience only a short response delay, the interrupted service - http://www.neohigh.com/