NScan is an extremely fast and flexible portscanner
for Windows, which is specially designed for scanning
large networks and gathering related network/host
information. In fact, it's not only portscanner, but a
kit for testing network security and reliability, that
can solve numerous problems on your network. NScan has
a set of utilities, which can be used separately or by
scanner itself.
Utility set currently contains fast parallel
traceroute, that traces all the way to the host at
once in one or two seconds, making route discovery
tenth times faster, whois, that supports automatic
information recognition and fetch, has query history
and other useful custom features and, finally, TCP-
based DNS client that supports most of the available
options, including AXFR zone transfer.
Portscanner engine also supports command-line options
which enforce scanner to run automatically, allowing
to run it remotely or as batch job.

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