DurableCopy

The attributes which Durable Copy will copy are standard file attributes that are returned by this function: http://msdn.microsoft.com/library/default.asp?url=/library/en-us/fileio/fs/getfileattributes.asp
These attributes have no data that can be used to recognize who the file author is.

In this page you can see author attributes which can be set to the file by Windows Explorer:

Explorer Summary page

In the file system this data is stored in the hidden stream of the file.

Durable Copy does not copy any hidden streams or NTFS extended file attributes.

MS Word documents, database files, and many other different document formats store its author´s data in the file itself, and not in the hidden streams. This data will always be copied successfully.

FAT file systems (flash disks), CDFS, and UDF file systems (DVD and CD disks)cannot store hidden streams of the file. You cannot copy "Summary" data by using these disks.

If you want to backup "Summary" of the file to DVD and CD, you should use backup software which will store backed up data in the special internal format.

Please note, the data of the "Summary" stream cannot be used as evidence in a court of law.

To be able to prove who the author of the document is, the author should sign its contents with a personal private asymmetric key and publish the signed document with the corresponding public asymmetric key.

Use the following link to get information about an example of software that can sign your documents:

http://www.pgpi.org

We recommend you to save old versions of your files. Previous versions of an author´s file can be important evidence in a court of law.

To keep previous versions of your files you can use this application:

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