nLite Drivers removal?

[SpaceCaseDave]

I'm all for making a slimmed down version of windows but I don't particulary care if the actuall install CD takes up the whole CD, just as long as what is actually copied to the Hard Drive takes the minimal amount of room.

So my question is:

Are all the drivers on the install CD copied to the Hard Drive when windows is first installed, or is it only the ones that are needed and were detected as being needed by the setup process?

Because if only what is needed is copied to the H.D. then I would much rather have nLite leave all the driver on the CD without stripping them, because lets face it a CD has 700Mb = lots of room, and I'm not trying to make a USB key install or anything where size might be more of an issue.