The bottom part of the Administrator program shows a status bar. You can enable or disable seeing the status bar through the View menu. The status bar gives information at-a-glance about the server that is selected in the Administrator program, to get this information the Administrator program needs to be logged in to that server. The update frequency of the status bar depends on the server that the Administrator program has selected, it is more frequent for the local server.
The first (left) field of the status bar shows the server that is currently selected in the Administrator program and the type of administrator privilege the Administrator program has on that server.
The second field shows the total throughput of the server in kilo-bytes-per-second. This is the total of all users, all commands and replies that are being sent and received, and all file transfers plus directory listings. Shown are downlink speed, from server to clients, and uplink speed, from clients to server.
The third field shows socket use. Every network connection and every listening port takes up a socket. Each data transfer (a file transfer or a directory listing) sets up a separate network connection, which will be reflected in the number of sockets that are in use. The second number is the total number of sockets Windows claims it can make available. This should not be taken too literally though: Sockets are a shared resource and other programs are also using sockets that count towards this maximum. Also, the system does not really have the ability to make that many sockets available at the same time (32000+ as reported on most systems), so this number should be taken as just an indication rather than an absolute. Be sure to read the notes on Windows 9x in this respect.
The fourth field shows the number of FTP users currently logged in to the server and the user limit for the entire server (if one is set). The first number (8 in the sample above) is the total number of all users, the second number (7 in the sample above) is the number of anonymous users.
The fifth field shows how many file transfers are currently in progress on the server. These can be file uploads or file downloads.
The six field is only present if there are any messages for the system administrator. FTP users can send messages to the sysop using the SITE MSG command. If new messages are present that have not yet been read the little envelope icon will blink. Clicking on the icon will bring up the User Messages window.