With the gradual perfection of the development of the network information era, network security issues are increasingly gaining attention. As one of the important tools for online communication, the security performance of IM communication software naturally cannot be ignored. Domestically, it is well-known that Tencent QQ's QQ Doctor provides a certain level of security protection for QQ chat. Recently, Microsoft's MSN, as a global IM tool, has also launched the MSN Security Shield.
Two months after the launch of the Microsoft product Messenger 9.0 version, it has been widely loved by users. Based on feedback from everyone, Microsoft's technical team re-released Messenger 9.0, making more complete product changes and creating the current unique standalone installation package for Messenger 9.0.