/JoinDomain:{Yes | No} Specifies whether or not the computer will be joined to the domain as this computer account during ...

[/JoinDomain:{Yes | No}]
        Specifies whether or not the computer will be joined to the
        domain as this computer account during installation. The
        default is Yes.

[/ReferralServer:]
        The name of the server to contact to download the network boot
        program and boot image.

[/BootProgram:]
        The relative path from the RemoteInstall share to the network
        boot program that this computer should receive. For example,
        "boot\x86\pxeboot.com".

[/WdsClientUnattend:]
        The relative path from the RemoteInstall share to the unattend
        file that automates the Setup UI screens on the client.

[/BootImagePath:]
        The relative path from the RemoteInstall share to the boot
        image that this computer should receive.

EXAMPLES:
---------
WDSUTIL /Approve-PendingDevices /RequestId:12

WDSUTIL /Approve-PendingDevices /RequestId:20 /MachineName:Computer1
/OU:"OU=Test,CN=Company,DC=Domain,DC=Com" /User:Domain\User1
/JoinRights:Full /ReferralServer:MyWDSServer
/BootProgram:boot\x86\pxeboot.n12
/WdsClientUnattend:WdsClientUnattend\Unattend.xml /BootImagePath:boot\x86
\images\boot.wim

WDSUTIL /Verbose /Approve-PendingDevices /RequestId:ALL