I've been trying to make my own custom Windows 7 + Windows Vista installation USB with images that I've customized. I've got it working perfectly if I use Windows 7 only or Windows Vista only. However, when I combined both WIM files into one large install.wim, used Windows 7's installation disk copied to USB, and replaced the install.wim from that with my combined file, I can only install Windows 7 images. When trying to install Windows Vista images, I get this error "Windows could not display the images available for installation". Does anyone know if there's something special I need to do to the installation media in order to be able to deploy Vista? The weird thing is that these images work fine if I boot from my WDS server and do the install. Any help would be appreciated!