" Thanks to the hard work of Ryan Permeh ( from eEye) and Andy Lutomirski, the base Nmap package now builds and functions under Windows! Note that Windows support is not yet as stable or fast as the traditional UNIX version.
Command-line zipfile:
Every major " stable" Nmap release comes with Windows command-line binaries and associated files in a Zip archive. No graphical interface is included, so you need to run nmap.exe from a DOS/command window. See the screen shot above. Or you can download and install a superior command shell such as those included with the free Cygwin system. Here are the step-by-step instructions for installing and executing the Nmap . Zip binaries:
1. Download the binaries:
Latest stable Nmap command-line zipfile: nmap-3.55-win32.zip
Latest development Nmap command-line zipfile: Currently none -- use stable
2. Uncompress the zip-file into the directory you want Nmap to reside in. An example would be C:\Program Files\. A directory called nmap-VERSION should be created, which includes the Nmap executable and data files. If you do not have a Zip decompression program, there is one ( called unzip) in Cygwin, or you can download the open source and free 7-zip utility. Other alternatives are WinZip and PKZip, though these may note be free ( in any sense of the word).
3. Consider applying the Nmap performance registry changes by clicking on nmap_performance.reg in the new Nmap directory. This increases the number of ephemeral ports reserved for user applications ( such as Nmap) and decreases the amount of time before a closed connection can be reused.
4. Nmap requires the free WinPcap packet capture library. Obtain and install the latest version from http://winpcap.polito.it. They distribute an executable installer which makes this easy. At the time of this writing, the latest version ( 3.1-BETA) is known to work.
After installing Nmap using the steps above, it can be executed as follows:
1. Make sure the user you are logged in as has administrative privileges in the box ( should be in the administrators group).
2. Open a command/DOS Window. On Windows XP, this is in Start Menu -> All Programs -> Accessories -> Command Prompt. That path may vary by Windows version, but it should always be available from the Start menu. Opening a Cygwin window ( if you installed it) by clicking on the Cygwin icon on the desktop is fine too, although the necessary commands differ slightly from those shown below.
3. Change to the directory you installed Nmap into. Assuming the example directory name used in the install section above, type:
c:
cd " \program files\nmap-VERSION" ( replace VERSION with the Nmap version number)
4. Execute nmap.exe by typing a command such as nmap -A -T4 scanme.insecure.org. Here is a screen shot."
http://www.insecure.org/nmap/nmap_download.html
http://download.insecure.org/nmap/dist/nmap-3.55-win32.zip
