Easy Hard Drive Space Monitor will allow the administrator to monitor the free and used space on remote servers and desktops, all visually and easily. Simply type in the name of the server, and give login information, and you are presented with a visual cue of space. This program is intended to be as easy-to-use and learn as possible, while executing its core purpose flawlessly. No installation is required on the remote systems! Do it all from a single desktop.
Easy Hard Drive Space Monitor can do:
Monitor your servers' free space on hard disks as well as removable storage, floppy drives, and CD Drives
Visual color codes to alert you immediately to which servers need your attention with only a glance
Avoid costly downtime when your server drives fill up, simply by knowing about the problem in advance
No installation required on the servers. Install the monitor to a desktop and it will connect through the network!
Increases productivity by reducing possible downtime of server shares
Easy-to-use, visual interface provides immediate cues to which servers need attention
Automatically updates the status of hard drives every 10 minutes, allowing for a consistently updated poll
Utilizes Microsoft's familiar volume lettering

The license of this software is Free Trial Software, the price is $29.99, you can free download and get a free trial.