I currently have a batch file that will run the Safely Remove Hardware function (the same thing as double clicking on the safely remove hardware button in the system tray).

What I would really like, however, is for the batch file to actually go ahead and eject a specific media. Since my external hard drives always have the same drive letters, I feel like this should be possible.

Here's the text of the current batch file I'm using in case it helps. By the way, I know nothing about any of this programming.

REM SAFEREMOVE.BAT

echo off
echo SAFELY REMOVE
echo Starting Safely Remove
%windir%\system32\RunDll32.exe shell32.dll,Control_RunDLL hotplug.dll

Welcome to Geeks to Go!

If you are trying to eject media from the your CD-ROM, you can use a VBS file for this. Save the following code as eject.vbs and then just run it using cscript.exe eject.vbs (or just double-click it if you want to test it).

Opening a CD drive:


If this isn't what you're looking for, please let me know.

Ax

Mmmm sounds like it's not really "eject" but you want your USB devices "safely removed" automatically rather than having to do it yourself.

Here's a link that seems to have the information you need to get started:
http://portableapps.com/node/639