Each instance of this class represents a source file with it's various attributes, ordered by a unique, non-localized identifier. ...

Each instance of this class represents a source file with it's various attributes, ordered by a unique, non-localized identifier.  For uncompressed files, the File property is ignored, and the FileName column is used for both the source and destination file name. You must set the 'Uncompressed' bit of the Attributes column for any file that is not compressed in a cabinet.