Program that can be used for direct instant messaging via LAN, intranet and Internet. Unlike the products of instant messaging for Internet developed by other companies, AlpSoft NetMessenger is based on TCP/IP (not UDP) protocol. It means guaranteed data transmission. AlpSoftNetMessenger was developed with the orientation on effective usage in the business.Some of main features: Multiple recipients, File transfer Mail notification, Message Filtering and File Transfering are available in the current beta version.High privacy, AutoAnswer and realtime Direct Chat will be realised in the final version. Main module of NetMessenger has small size only 190 Kbytes and takes little amount of memory.