AM LAN Messenger is similar to MSN,is an instant messaging product.But MSN is a public instant messaging systems, because of its chat object and content can not be controlled ,if use MSN in working hours may reduce efficiency.In addition using MSN client need to login the Internet,but for enterprises, there may be some security risks (such as: virus-free, data leaks, etc.). Features: 1.The system provide independent instant messaging servers for enterprises AM LAN Messenger can be deployed in the local area network,users can communication with each other in the LAN and don't need to login Internet.If colleagues need to use AM LAN Messager in other places,only need to map AM server IP address to the external network. 2.All users are established by the system administrator in accordance with the organizational structure. To ensure that only colleagues or business contacts can log on AM LAN Messenger. 3.All communications transfer through the instant messaging server; you can view the historical information in the server ; this framework makes the system to have some function of enterprise mailbox; 4.We provide Application programing interface for OA,ERP. most improtant: Not only provide LAN communication,but also can realize that the application will remind the user when the user receives a messager.IM integration is that the user will receive a message when he has a task in a system,it will aviod delaying important tasks. 5.feature 1)transfer large files and directories (file size:>=100M) 2)sign message or track message(check whether the receiver opened the message) 3)Send offline message(transfer files,folders to offline users and also support group sending) 4)Multi-server interconnect (can build a distributed enterprise architecture) 5)screen capture, send after making annotations(sometimes, words can not express clearly, must express through images with text annotations.)