SuperScan is a free, useful and powerful TCP port scanner, pinger, resolver.

Here are some key features of "SuperScan":

· Superior scanning speed
· Support for unlimited IP ranges
· Improved host detection using multiple ICMP methods
· TCP SYN scanning
· UDP scanning (two methods)
· IP address import supporting ranges and CIDR formats
· Simple HTML report generation
· Source port scanning
· Fast hostname resolving
· Extensive banner grabbing
· Massive built-in port list description database
· IP and port scan order randomization
· A selection of useful tools (ping, traceroute, Whois etc)
· Extensive Windows host enumeration capability