Comment 473 for bug 412647

(In reply to Ted Mielczarek [:ted] from comment #301)
> We ship the CRT files alongside our app. I don't think your reading of the
> EULA is correct. Those files are explicitly listed as "redistributable", and
> historically you have been allowed to ship the DLL files with your
> application.

Apparently I was hitten by this bug when I last read the EULA: http://archive.msdn.microsoft.com/KB956414. But indeed it's very clear here that you are allowed to redistribute them even without the installer (http://msdn.microsoft.com/en-us/library/ms235299.aspx)