Intalling Windows 7
Windows 7 Installation Methods
Distribution share installation
The distribution share installation requires computers to be booted into Windows PE from removable storage and then run the Windows 7 installation from a distribution share.
The speed of a distribution share installation varies because all of the files must be transferred across the network.
The level of customization for a distribution share installation is higher than a CD boot installation since distribution share can be customized by WSIM or ImageX.