Unattended installations of Windows 7 are almost the same as with Vista. There are some new configs and deprecated settings, but in the end, they work exactle the same way. The first thin you will need to start making your own unattended installations is to install WAIK (Windows Automated Installation Kit) and read all the documentation. This will get you the knowledge to start making your own stuff. You can download the version for Windows 7 RC from Microsoft. There is also the OEM Pre-Installation Kit (OPK) for Windows 7 RTM. Think of it as a WAIK for OEM's. vLite worked with WIAK for Windows Vista, but not with WAIK for Windows RC. However, I just used it for making the bootable ISO's. I like making everything manually. I have already installed Windows 7 RTM unattedly from USB sticks in a few computers now.