Not only am I running TWS on Windows '03 server enterprise, I am running it on the 64-bit version. nitro
The term is "Cascading Capabilities", "offline", and is supported by APC, Tripp Lite etc. Daisy chain is probably the wrong word because it conveys that people should plug UPS into each other with them all on. The idea is no different than laptops that can have more than one battery in them, and the other "fails over" when the other runs out of juice. For example: http://ptsacco-ichoices.stores.yahoo.net/apcsm48vrm3u.html People talk about pure sine wave UPS. You don't need those for typical computer equipment.