My problem, when I go to redo my ISO after I loaded the last session, it always increases in size. I usually just change a few settings on the Components or Unattended screen (I don't add any additional hotfixes or drivers). I also notice that it says the # of MB for the Drivers increases . When I load the last session (I don't have the Load Last Session box checked, I just click the Load button) I click Next through the screens, XP SP3 is already integrated, it shows my previously added Hotfixes/Addons/UpdatePacks/Drivers, then I arrive to the Components or Unattended screen this is where I want to make some minor changes. When I load a session, do I need to delete the Hotfixes/Addons/UpdatePacks/Drivers that it loads & assume all these are already integrated (are these already integrated into the build from the last session)?? Is that why my ISO increases everytime? [i hope I phrased this right] Your replies are much appreciated!