If you have a special cable (USB A - Ethernet) then you can connect an uninterruptable power supply from APC with your computer.
This program will detect when your computer runs on the battery of the UPS.
Then it can save all open documents and/or shut the computer down.
It's a hybrid CD.
The software for Windows is called PowerChute.
OS 9.0.4 required
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APCShutdownMgr101.toast.sitx
The MD5 is 32a70bd8282deaf31c738421bad0b2f5.