Following Sue Mosher's advice (separate posting) I used the SaveAsFile method
to copy a text file DocumentItem to a Windows file system directory where it
can be opened and configuration data read. This works perfectly. However I
would like to make the DocumentItem, its Attachments collection (of 1
attachment) or the folder that holds the DocumentItem, invisible to the user
but still accessible to code running in the user's session. This is to stop
the user tampering with the configuration data. Is it possible to do this?

GP