I download the file: he_windows_7_ultimate_x64_dvd_x15-65934.iso, And installed it. And this is the final version that sell in stores? because I saw in MSDN Site that this version released in 8.28.2009, and the N version in 22 october? why? and why i see in my cd also a "RC License" in "Sources" folder? and why I have in the Program files "MSBuild" folder? it's not to the Microsoft developers? Sorry about the english, and thanks.