I thought there might be someone (like me) out there who doesn't want to open the CD tray manually when they're done installing so here is a windows script that ejects the cd tray.

open.vbs

Const CDROM = 4
For Each d in CreateObject("Scripting.FileSystemObject").Drives
  If d.DriveType = CDROM Then
    Eject d.DriveLetter & ":\"
  End If
Next

Sub Eject(CDROM)
  Dim ssfDrives
  ssfDrives = 17
  CreateObject("Shell.Application")_
    .Namespace(ssfDrives).ParseName(CDROM).InvokeVerb("E&ject")
End Sub

Well, I thought I should also post one to close it.. This one is a bit trickier. First of all you need wshAPIToolkitobject.ocx (one option). Copy it into system32 and run regsvr32 wshAPIToolkitobject.ocx

close.vbs

Dim oATO 
Set oATO = WScript.CreateObject("wshAPIToolkitObject.ucATO", "")
Const ssfDRIVES = &H11

Const DriveTypeCDROM = 4 
Set oFS = Wscript.CreateObject("Scripting.FileSystemObject") 
Set oDrives = oFS.Drives     
For Each Drive in oDrives  
  If Drive.DriveType = DriveTypeCDROM Then
    cdromDrvLtr = ("Drive.DriveLetter")
  End If 
Next 

Set oSH = CreateObject("Shell.Application")
nRtn = oATO.CallAPI("WINMM.DLL", "mciSendStringA", "Set CDAudio door closed", 0, 0, 0)

wshAPIToolkitObject.ocx

You have a robot to remove the CD from the already opened CD tray too? Maybe one to turn it on and put the CD in the tray to begin with...

this is posted on http://unattended.msfn.org

Download: CDR - a command line CD Drive Ejector utility

CDR.exe is a command line utility which you can execute to eject one or more CD/DVD drives. This can be used as a replacement for the cd_eject.vbs script file, which wasn't all that great in terms of functionality. Use CDR.exe /? for a full list of switches and examples.

Why would you want to use this tool? This can be handy to eject your Windows XP CD before performing replace/delete commands in the Windows or System32 directories, in which case Windows File Protection can intefere at times when the CD is in the drive.

Usage: CDR.exe open ALL

Thanks to devil270975 for developing this tool for MSFN.org

IMO, this is easier

You have a robot to remove the CD from the already opened CD tray too?  Maybe one to turn it on and put the CD in the tray to begin with...

Maybe he's got hold of an ASIMO...