I live in a city with terrible (truly) power - its up and down like a yoyo, and when its there, it seldom actually at the voltage it should be at.. So. The two macs in the house are safely sitting behind APC UPS's, but now there is a Windoze 2003 Server in the house as well, and I aint dropping more dosh on another UPS for it. The UPS on my mini is an 800VA UPS, so quite capable of holding both the PC and the mini up long enough to shutdown, trouble is, only one of them can be told to shutdown by the UPS. Sooo. Does anyone know how, from my Mac, I can automate a shutdown command to a windows 2003 server when the Mac receives the notification from the UPS. Obviously, the machines can see each other on the network (switches and routers also on UPSs so even during a blackout, the Mac and PC will still comms.) I have, in the interim, set the drives and raid controllers on the PC to not use caching, so at least I wont have data loss. Ideas?