Task Host Window is an intelligent windows program which pops up when you attempt to Shut Down windows. The reason why it pops up is due to the running processes and programs in the background; when you initiate shutdown or reboot, task host interrupts the process to check if all running programs were closed to avoid data loss, the pop up would also show you which programs were running.
The noun ARM'S LENGTH has 1 sense: 1  1. a distance sufficient to exclude intimacy. 2  Meaning: 3  A distance sufficient to exclude intimacy. 4  Classified under: 5  Nouns denoting attributes of people and objects. 6  Hypernyms (arm's length is a kind of...): 7  distance; length (size of the gap between two places)
An upper limb of the human body, connecting the hand and wrist to the shoulder. 2. A part similar to a human arm, such as the forelimb of an animal or a long part projecting from a central support in a machine. 3. Something, such as a sleeve on a garment or a support on a chair, that is designed to cover or support the human arm. 4. A relatively narrow extension jutting out from a large mass: an arm of the sea. See Synonyms at branch.