While there are windows ports of netcat available, none of them includes the features which the OpenBSD version of netcat provides.
The option -V is not supported on this windows version.
Cygwin is required for this version of netcat to work.
If you already have cygwin installed: minimum Cygwin version required is: 1.7.8-1.
MD5 Checksum: ef8f7497e3cf1c3b2208bb3215e72c2e.
ZIP Archive: netcat-openbsd-win32-184.108.40.206.zip.
MD5 Checksum: f229068bd2c136e58598f4801aa430aa.
Just copy bin/nc.exe to /usr/bin/ inside the Cygwin installation directory.
Netcat-OpenBSD version 220.127.116.11 for win32/cygwin 2011/03/02 usage: nc [-46DdhklnrStUuvz] [-I length] [-i interval] [-O length] [-P proxy_username] [-p source_port] [-s source_ip_address] [-T ToS] [-V fib] [-w timeout] [-X proxy_protocol] [-x proxy_address[:port]] [hostname] [port] Command Summary: -4 Use IPv4 -6 Use IPv6 -D Enable the debug socket option -d Detach from stdin -h This help text -I length TCP receive buffer length -i secs Delay interval for lines sent, ports scanned -k Keep inbound sockets open for multiple connects -l Listen mode, for inbound connects -n Suppress name/port resolutions --no-tcpopt Disable TCP options -O length TCP send buffer length -P proxyuser Username for proxy authentication -p port Specify local port for remote connects -r Randomize remote ports -S Enable the TCP MD5 signature option -s addr Local source address -T ToS Set IP Type of Service -t Answer TELNET negotiation -U Use UNIX domain socket -u UDP mode -v Verbose -w secs Timeout for connects and final net reads -X proto Proxy protocol: "4", "5" (SOCKS) or "connect" -x addr[:port] Specify proxy address and port -z Zero-I/O mode [used for scanning] Port numbers can be individual or ranges: lo-hi [inclusive]
The download tarball also contains a file named USAGE which is a copy of the FreeBSD manpage of nc(1). You can read it from a cygwin shell using the command less USAGE.
Copyleft (c) 2011 T.Linden
Copyright (c) 2001 Eric Jackson
Copyright (c) 1996 *Hobbit*
Redistributed under the BSD license.