There is just to much info here, and frankly, it is very confusing. First off, I am running Windows 7 (64bit) and looking to test Office 2010 on my computer. I did some reading and based on that I have downloaded the "Microsoft Office 2010 Select Edition RTM Volume x64 DVD English-WZT" listed on the site. Then I read all about the Volume vs the retail...etc... and confusion sets in so I will try to ask a very simple question. Which version of Office 2010 should I install so that I can permanently activate it? A.) Microsoft Office 2010 Select Edition RTM Volume x64 DVD English-WZT B.) Office Professional Plus 2010 (x64) - (English) C.) Neither...because they are not yet ready for Prime time! D.) Drink some more coffee and continue to read I think I can figure out which additional program might be needed to create the activation, I just am having a hard time understanding which one I should start with in the first place. Thanks'