Nyighai

Hi, I am planning to create unattended vista manually, with original MS tools (not vlite...i do not like component removal). But I am a bit concerned about space, so before I start spending hours on it, I need to know that there is a solution. How wil I be able to integrate scripts, application installations. various data etc..if the original build is as big as a full DVD (or am I wrong about this)? Thx.