Alternative Runtimes v2.0 for nLite
these are to be used instead of net framework
nliteos homepage

nlite runtime cab

Alternative Runtimes 2.0 has not worked properly since it's release. You will probably have issues once you reformat your computer. I'm afraid that the only option at the moment is to install .NET Framework 2.0, but luckily there is an addon for this listed on the nLite website:

http://nliteos.com/addons/#15