Manually Preparing Images
The distribution share and answer files describes to Windows Setup how to install and configure Windows Vista. It includes the settings (answer file) as well as device drivers and packages that you want to add to the operating system. It might also contain applications that you want to install.
A common way to deliver operating systems to users is to create an image of the configuration. This is particularly true when the distribution includes other files, such as applications. Creating an image that you install on each destination computer is quicker and more efficient than installing the uncustomized Windows Vista image and then installing applications on each destination computer.
Sysprep prepares a Windows Vista installation ...