by Luis de Vasconcelos.
Well, if you're not familiar with the Moodle setup process then a good place to start is to read the Moodle installation documentation, example:
http://docs.moodle.org/24/en/Windows_installation
http://docs.moodle.org/24/en/Installation_for_Windows_2003_with_IIS
http://docs.moodle.org/24/en/Installing_Moodle
http://docs.moodle.org/24/en/Installation_FAQ
Then come back with specific questions.