Microsoft Vizact 2000 was a web application creation tool designed to add interactive elements to web pages. It's important to note that Vizact has since been discontinued and is not supported on newer operating systems. For creating HTML animations, I would recommend using more current technologies like CSS animations or JavaScript libraries such as GSAP (GreenSock Animation Platform).
If you specifically need to use Vizact 2000 on Windows NT Server 4.0, I suggest looking for legacy documentation or communities that focus on retro computing for guidance, as resources for this software are very limited due to its age. Additionally, consider reaching out to online forums where enthusiasts or professionals knowledgeable about legacy Microsoft products might be able to offer more specific help.