You could have downloaded LANOff 5.2 from our software library for free. The most popular versions among the software users are 5.2, 5.1 and 4.0. The actual developer of the free program is A.J Shadlock. The program belongs to System Utilities. The LANOff installer is commonly called LANOffM.exe.
From the developer:
LANOff monitors network connections and optionally initiates computer shutdown if the network connection to specified computers is lost. LANOff supports all the normal shut down modes. LanOff is part of the JSutils group of software utilities which have a theme of energy conservation.
You may want to check out more software, such as LogMeIn Scout, NetSupport Manager for Pocket PC or Cyber Cafe Administrator, which might be similar to LANOff.