How can I automatically ignore Driver Signing Warning.

Hi.

I hope someone can help me with this.

During a XPe setup (FBA), I need to install a third pary
driver package using a FBA generic command. My problem is
that the driver package has not passed Windows Logo
testing, so the unattended setup halts, and ask for
confirmation from the user before the driver installation
continues. Is it possible to inform the FBA that it
should ignore the Driver signing test? (As in the normal
Windows XP unattend setup setting:
DriverSigningPolicy=ignore).

Other than halting for confirmation, the package installs
succesfully.

Thanks
TC.