Net Activity Diagram is a good, free program only available for Windows, being part of the category Networking software and has been created by Metaproducts.
It's available for users with the operating system Windows 95 and previous versions, and you can get it in English. The program version is 2.3.293 and the latest update happened on 1/19/2006.
Since we added this program to our catalog in 2004, it has managed to reach 3.057 installations, and last week it had 0 installation.
Net Activity Diagram is a slick program that will require less space than the average program in the category Networking software.