Barter Window is a free product exchange system that aims to eliminate the liquidity crisis by allowing users to trade, swap, and replace anything without the use of money. The advantages of the barter system include the absence of complex monetary problems, no over or under-production, no concentration of economic power, and ideal utilization of personal and natural resources. Barter Window's motto is 'Paisa Mat Bol, Keemat se Tol' which means 'Don't talk about money, measure by value'.