FIELD : information technology.SUBSTANCE : invention relates to a software-hardware system of electronic sales systems and can be used to organize sales and auctions for sale of real estate using a communication network in real time. Software-hardware system is divided into layers, from which a remote server with a user interface program placed in its memory, is the upper, central server of an auction organizer with the said trading objects placed in its memory base is the middle, as well as the objects accounting system, for example 1C, lower layer is a local communication network with computers of traders, interacting through firewalls.EFFECT : fewer errors during program operation.2 cl