Thanks. I should have look into WIM before asking. My concept of setup for one specific computer with specific hardware (sysprep isn't needed): 1. Install system, updates, SP, ... and remove components. Instead FBA write one batch file (for example addreg.bat) and set autorun after next reboot. 2. Create base image. 3. Create images of additionals components, but instead registry hive files (.sav) create .reg files, which they will be joined by addreg.bat at first boot. 4. Create PE system. 5. Create batch file, which (for testing purposes) deploy base image and all components on disk. 6. Burn PE, batch and WIM on CD (or create ISO). 7. Test solution... -> deploy -> reboot -> At first boot, addreg.bat silently runs regedit to join .reg files into registry. If all will be OK, write own setup (Win32, .NET framework won't be necessary).