This documentation only applies for Netzob 0.3.3.
easy_install numpy
easy_install impacket
easy_install lxml==2.3
easy_install -f "http://downloads.sourceforge.net/project/matplotlib/matplotlib/matplotlib-1.1.0/matplotlib-1.1.0.win32-py2.7.exe?r=http%3A%2F%2Fsourceforge.net%2Fprojects%2Fmatplotlib%2Ffiles%2Fmatplotlib%2Fmatplotlib-1.1.0%2F&ts=1339591175&use_mirror=netcologne" matplotlib
easy_install bitarray==0.3.5
If you have disabled Windows UAC, a error can be raised by Windows when executing Netzob's installer: Failed to start elevated process (ShellExecute returned 3). So you have to run the installer with administrator privilege : right-click on the executable and choose "run as administrator".