I have access to a windows 7 license through the school I attend. I plan on running it through boot camp. It is downloadable off of a website I have access to. However, when I download the file, it downloads it as a Microsoft extension file(.exe). I downloaded stuffit expander in hopes that it could open the .exe file but it did not work, unfortunately. What do I need in order to open this file and install it? Someone has told me something about needing a "delivery client" that will handle the actual file download but I am unfamiliar with this term. Please help!