My own favorite is github.com/phaenomenon/cgminer, which is quite up-to-date (version 4.12.1)...
There is a ready-made assembly for Windows?
I don't think so. As far as I see this is *nix only so Windows won't be an option. However feel free to check out and read the documentation which is quite detailed and will potentially answer all of your questions. Good luck and happy mining!