Do a Google search on "kernel design" (no quotes of course) and that should give you a list of documents of the core OS designs. --- Holland's Person, Bill E-Mail: BillGallik@xxxxxxxxxxxxxx - As the skunk said when he fired a shot upwind, "it all comes back to me now." __________ View the list's information and change your settings at //www.freelists.org/list/programmingblind