Fresh source Ok, tried all of the files through nlite, then the WMP11. Still getting errors: WMP11Slipstreamer.ArchiveMethods+ArchiveProcessException: An error occurred while creating "wmadmoe.dl_". ---> System.ApplicationException: AddFile failed with code OpenSrc at Mischel.CabDotNet.CmpRoutine.AddFile(String filename, String nameInCab, Boolean execOnDecompress, FciCompression compressType) at WMP11Slipstreamer.ArchiveMethods.NativeCabinetMakeCab(String fullFilename, String destinationDirectory, Boolean log) --- End of inner exception stack trace --- at WMP11Slipstreamer.ArchiveMethods.NativeCabinetMakeCab(String fullFilename, String destinationDirectory, Boolean log) at WMP11Slipstreamer.Backend.CompressFiles() at WMP11Slipstreamer.MainGUI.workerMethod(Object addonSettings) Deleting "D:\WXPVOL_EN\i386\wmp11temp"... FAILED! An exception occurred while attempting to delete the temporary folder to revert the changes done to the source.