Before you implement the LAN messenger to your company or private network, you can do a search for the advantage and disadvantage of Net send as compared to a LAN messenger from the page
http://www.bigantsoft.com/net_send.html1
You can find a LAN message through Google search or refer to a professional shareware collection website.2
Compare the features and price of the LAN messenger, download a free trial to see if the LAN messenger fulfills your requirements.- Advantages and disadvantages of use a LAN messenger to send message to network user: LAN messenger encrypts all data transmitted through your company network. You can send/receive message even files and folders. The GUI on client side is more user-friendly and functional. Most specialized LAN messenger are shareware, so extra budget for implement a LAN messenger will be considered. For medium and large company, IBM Lotus Sametime and Microsoft LCS will be a good choice, for small and medium company, you can get a try with Pidgin, BigAnt LAN messenger, Jabber.