I know Windows XP and previous had an
rsm.exe file in the
<root>\windows\system32 folder that could be used to manage media. I used this command in batch files and from the command line to eject external disks (iPod, CF cardreader, etc.).
This utility appears not to be included in Windows 7, and I wonder if there is some replacement utility that will allow the same thing. I've been unable to find any such thing.
I'm aware of the 3rd party utilities; this question is only about what is included with Windows 7.