NCS Z-tools.he WhoIsConnected

Allows you to monitor and manage your local area network connections.
It shows you which users are currently connected, and allows you to view details about what files/folders are used, connection time, and more.
In addition, you can choose to terminate any connection, choose to be notified on new connections, disable the newest connections to your computer (analogue of the command "disable login" in OS Novell NetWare), send a message to the user and also view a list of open IP ports(Windows XP/2003), as well as the program associated with them.
The program runs in the system tray and provides a convenient interface.