Provide online downloads for all supported MSI versions
Provide easy to find download access to all MSI installers. Up to recently, only if you knew where to look you could get installation files for Office 2007-2013 through the Digital River site. But, the average user had no idea to look there, so make it easy to find on MS web site. As well, recently DR re-organized their site and I don't know if we still have access to those old downloads.