http://www.binarytides.com/install-run-sqlmap-windows/
Download and install python
Since sqlmap is written in python, the first thing you need is the python interpreter. Download the python interpreter from python.org. There are two series of python, 2.7.x and 3.3.x. Sqlmap should run fine with either. So download and install.
Download and install sqlmap
Next download the sqlmap zip file from sqlmap.org. Extract the zip files in any directory. Launch the dos prompt and navigate to the directory of sqlmap. Now run the sqlmap.py script with the python interpreter.
C:\sqlmapproject-sqlmap-2defc30>python ./sqlmap.py Usage: ./sqlmap.py [options] sqlmap.py: error: missing a mandatory option (-d, -u, -l, -m, -r, -g, -c, --wiza rd, --update, --purge-output or --dependencies), use -h for basic or -hh for adv anced help Press Enter to continue...
That was easy! Sqlmap is asking for some parameters so that it can hack something.
Now that you have finished installing sqlmap and are ready to run it, you might want to read some tutorial on how to use sqlmap.