Promoting the release of Red Alert 3 EA released Red Alert as freeware in 2008. The status of the Red Alert expansion packs is a bit unclear however EA has in the past linked to sites in the C&C community that provides downloads for them so we believe that EA simply forgot to upload them themselves.
This is a ZIP archive containing a bin and a cue of the Aftermath mission disc for Red Alert. To be burned to a CD or mounted in a virtual disc program.
The process of manually installing the game on a modern system is fairly involved. If you are not comfortable with using technical tools and want to be up and running easily check out the Red Alert installer instead.