Blue4603: Great start and fantastic to see some software out of SA. Can you fix the paths, cos every time it looks for one of the batch files it gets the path wrong. Eg: Unexpected Error: Could not find a part of the path 'E:\win7_build\Win7_x64_updates\work\updates.bat'. ... work\iso.bat ... So instead of using relative paths maybe have a fixed working directory. Also could you wrap your code in more try{} catch{} blocks cos it's annoying having to restart every time it falls over. Also the all important question... any plans to add a component removal tab? One last thing, none of the changes I made the the "services" section applied... so the install was a complete vanilla. OS: Win x64 Test: VM