Notice: PyCrypto is dead pycrypto/pycrypto#238
I suggest using cryptography or PyCryptodome instead
Built Distributions of PyCrypto on Windows
To install PyCrypto 2.6.1 for a 64-bit Python 3.5 installation run:
pip install --use-wheel --no-index --find-links=https://github.com/sfbahr/PyCrypto-Wheels/raw/master/pycrypto-2.6.1-cp35-none-win_amd64.whl pycrypto
To install on a 32-bit Python installation run:
pip install --use-wheel --no-index --find-links=https://github.com/sfbahr/PyCrypto-Wheels/raw/master/pycrypto-2.6.1-cp35-none-win32.whl pycrypto
These built distributions were compiled with VS Enterprise 2015 on Windows 10. They should work on any Windows installation.
For more info on how I built these and how to build them for yourself: Stack Overflow: PyCrypto on python 3.5
If you're looking for a built distribution for a different version of PyCrypto or Python, check out Voidspace. I made these originally because Voidspace was not updated with a build for Python 3.5.