Also called "Chat Programs". These applications are installed on a PC by a user, and allow immediate "chats" between other users of the program. Some of these programs also allow audio or video conferencing as well as the ability to execute file transfers.
P2P Messenger is secure Instant Messenging client, working by Peer-to-Peer technology. It is fully decentralized and does not require any servers. Supports public-key cryptography.
