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I've seen a few executables/utilities that do it, and many forums that say it is not possible to do. But is there any DOS command that I can rely on in a typical XP installation?

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up vote 2 down vote accepted

There seems to be no way using rundll or a preexisting executable.

If you have windows scripting host installed, maybe the following helps (untested, copied from another forum)

Set oWMP = CreateObject("WMPlayer.OCX.7")
Set colCDROMs = oWMP.cdromCollection

Change the (0) if you have more than one drive.

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+1 Tested and works for me on XP Pro. – Dave Webb Sep 17 '09 at 15:30
FYI, every Windows has WSH installed (at least anything since 2k). – Wedge Sep 18 '09 at 1:54

I can do better than that... Paste this into a batch file called "eject.bat":

for /F "usebackq tokens=6" %%i in (`vol %1:`) do if "" neq "%%i" rsm eject /pf%%i

You can pass any drive letter to this batch file, so you can eject any drive. You can even eject devices like iPods and USB drives.

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Didn't work for me on my laptop's tray CD drive in XP. – Nathaniel Dec 4 '09 at 22:22
Hmm, I guess it only works if there is a disk in the drive! Sorry about that. – skypecakes Dec 8 '09 at 20:15

There is a windows API call to do it, but unfortunately not a built in command.

There is a command line tool you can download though that will do the job.

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Executables do it using the mciSendCommand API. I don't think it can be done though batch as of yet.

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Necro. Nir Command shortcut option "nircmdc.exe cdrom open D:" where D is your optical drive. Change icon for shortcut to something appropriate to eject.

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