This script looks great, aldo i am not sure i understand it completely. I dl'ed the 7zip stuff, and also all 3.5 net framework files (including language and hotfix). Changed nothing in the (loud) script to and run it. Now i have three files in the OUT1 folder: DNF20SP2nl.exe DNF30SP2nl.exe DNF35SP1nl.exe Do you need all three of them for a fully working Net framework envirement ?