If I understand SP correctly (and that is a BIG if) your entire system is completely frozen and if your AV is on when you activate SP, it stays on as if nothing has happened because as far as your c:drive is concerned nothing HAS happened (everything is being Shadowed). Your AV, and also ALL of your c:drive programs, will continue to function as usual because in reality nothing has changed. When you reboot they will just be reverted back to the moment you activated SP. Very powerful program, use with caution. (And also so simple to use which make it all the more dangerous to those who don't completely understand it). Long story made short: you don't need to change a thing to your AV or any program, just use them and pretend that you are not even using SP (unless you want to upgrade any of those progames to a new version).