94fbr Windows 11 Pro Free _best_ -

Bopup IM is a client/server instant messaging system that offers secure chat and encrypted text messaging for companies and wide-range of businesses. Software includes Bopup Communication Server which provides management options and log of message history, and Bopup Messenger — LAN instant messenger
with support of broadcast messages, Microsoft domain networks, Citrix/Terminal servers and real-time chat over Internet.