Running Netcat in Windows is easier than I tough, the entire process consists of downloading a single .zip file named nc111nt.zip from here or from the local mirror here. Wikipedia has a nice entry with examples on Netcat.
Unzip the file and move the resulting folder to a location where you can access it, for example.
Open a command line window and move to the location where nc111nt is located by using the command cd.
To run Netcat you need to type.
To view a list of available parameters type.
[v1.11 NT www.vulnwatch.org/netcat/\]
connect to somewhere: nc [-options] hostname port[s] [ports] …
listen for inbound: nc -l -p port [options] [hostname] [port]
-d detach from console, background mode
-e prog inbound program to exec \[dangerous!!\] -g gateway source-routing hop point\[s\], up to 8 -G num source-routing pointer: 4, 8, 12, ... -h this cruft -i secs delay interval for lines sent, ports scanned -l listen mode, for inbound connects -L listen harder, re-listen on socket close -n numeric-only IP addresses, no DNS -o file hex dump of traffic -p port local port number -r randomize local and remote ports -s addr local source address -t answer TELNET negotiation -u UDP mode -v verbose \[use twice to be more verbose\] -w secs timeout for connects and final net reads -z zero-I/O mode \[used for scanning\]
port numbers can be individual or ranges: m-n [inclusive]
Netcat is possible of many things, but my favorite use is to transfer disk images created with dd over the network. As an example I am going to image a 4GB CF card over a gigabit network(no compression). The concept of sender and receiver will be used. System where the image will be stored:
nc –l –p 7000 | dd of=/dev/hda
dd if=/dev/hda | nc 192.168.1.10 4000
Not many things are this easy to run and use, but the nice thing about Netcat is that it works regardless of the operating system being used. Like said I mostly use it to transfer the images I create with the help of dd (Parted Magic) over to my Windows server.