Vypress Messenger is a platform for sending text messages with attachments in real-time, without using any additional servers, from one computer to another or a few others. The platform supports several messages transferring protocols, including its own protocol, for guaranteed distribution of steer messages, using a TCP protocol and a multiple-address file distribution, using UDP and IP Multicast. Besides this, the platform supports a touchstone SMB protocol (for compatibility with WinPopup, вЂ