Dipiscan is a portable, multi-featured network scanner.

With Dipiscan, you will be able to scan IP ranges, retrieve information from a machine from its IP address, NetBIOS name or DNS, find the network "road" taken to get another machine and you can monitor a machine to see the changes since the last scan. It additionally includes a configuration dialog that will allow you to configure system operations and micromanage them and you can also extend the right-click menu with custom commands.

The UI is simple and uncluttered lending itself usable to any user skill level. It performed fast for us during testing without any issues.