From Eusing Software:
Free IP scanner is a very fast IP scanner and port scanner. It is intended for both system administrators and general users to monitor and manage their networks. Powered with multi-thread scan technology, this program can scan hundreds computers per second. It simply pings each IP address to check if it's alive, then optionally it is resolving its hostname, scans ports. Free IP scanner can also display NetBIOS information: host name, workgroup, currently logged user, and MAC address. The information obtained can be exported into a file as plain text file.
What's new in this version:
Added the item to hide dead hosts; Bug fixes and stability improvements.
Free IP Scanner scans an IP range from 192.168.1.1 to 192.168.1.255, shows my default IP address and port number. Shows my working IP address, work group name, host name, and physical address. It scans port numbers 21, 22, 23, 24, 25, 79, 80, 110, and 119, it shows IP addresses with a green check mark and a red x.
Free IP Scanner doesn't install into programs, thats why it can only be used one time.