Attention! NS is a client/server software system, providing support for over 15 Operating Systems including Windows NT/2000/XP, Windows 95/98, virtually all UNIX, OpenVMS, and OS400. This means guaranteed support on any platform you choose for SPECTRUM. And should you decide to expand the use of Attention! NS to other areas within the enterprise, our extensive list of supported client systems means you will have one notification solution for all your network, system and environmental management needs.