Power Monitor (Copyright ©, ISS, 2012)
This is a program I came up with when I bought a super-duper UPS that had a 1500VA capacity. With this much battery power at hand, I was able to connect three computers and all their ancillary equipment, plus the monitor (I use a 4-port KVM switch) and all the little wall-warts for power.
A problem arose when the 'host' computer - the one directly connected to the UPS using USB - was commanded to shut down because the UPS battery power was low. This meant that the other two computers were suddenly deprived of power, which makes the Operating System very confused, and could cause boot-up problems. This program is my solution to that problem.
The 'read me' file included with the install package is also available here as a link in case you wish to see how the program works. This is a new version with provisions for keeping a log of shutdowns.