Well yes and no...Nlite (the program that you slip stream service packs and hotfixes with) offers what they call "Add-ons" these add-ons are various pieces of software that you can embed in the install. I have not figured out how to create my own Add-on which would be nice!! but there is a wide range of available Add-ons that you could choose from (adaware, spybot etc etc). Maybe someone knows how to create add-ons for nlite?