Just integrating the SP3 on a original SP2 source through nLite makes the winnt32.exe install fail. Nothing removed, nothing tweaked, nothing else... just plain integration. This is on a Norwegian XP source. I haven't tried with an English source. Integrating by using Microsofts methods will make the winnt32.exe install work, but once I use nLite to change ANYTHING after the integration, it fails again. Normal installation through CD works, but not winnt32.exe.