It has been reported that some antivirus products may interfere with nLite 1.4.9.1 when integrating this update pack and others. nLite may throw one or more errors, including:
"H-The process cannot access the file '<SourceDirectory>\SVCPACK.INF' because it is being used by another process."
"CabLib Extract ERROR while extracting files from cabinet archive: Failure writing to target file"
If this occurs, please disable your antivirus product temporarily and try running nLite again on a fresh copy of your source.
Thank you, Kurt_Aust, for initially reporting and solving this problem with nLite and this update pack. :)