NTOP is a great network monitoring tool used primarily with Linux based system. However, in 2006 NTop released NTOP-XTRA which was designed for Windows XP. This excellent tool works with Windows 7 and can be used to monitor your network. Not as detailed as the Linux versions of NTop today, NTOP-XTRA for Windows is still an excellent graphical program. NTOP-XTRA must be ran with firefox.
Note: If you find and download the software below for Windows, you will start the OPENXTRA Commander services and open Firefox’s browser to http://127.0.0.1:3000
Because NTOP-XTRA installs Winpcap, you may elect to NOT install their version and download the lastest version here.
Minor correction: NTop didn’t release NTop-Xtra, Openxtra did. Hence, Commander being OPENXTRA Commander
TCAT Shelbyville - ITIM 
Pingback: NTop for Windows (via TTC Shelbyville – Technical Blog) | Chicago Mac/PC Support
good!
Openxtra no longer provide the NTOP-XTRA package for windows directly, it can only be found elsewhere on the web. Much easier on resources than some comparable windows software. Provides many of the essential measures for traffic monitoring such as drilling down by protocols and hostnames etc. With RRDtool plugin is straightforward to setup to keep historic records to monitor bandwidth consumption over weeks, months, years etc. Not sure what the benefit would be from compiling the current version of the source to run on Windows – would be interesting to see how much the feature set has changed. If you want to keep a watchful eye on bandwidth usage in a So-Ho network, NTop is one of the best solutions to get reporting up and running with the minimum hassle