Sharing a library

Is it possible to share a library using dropbox when using Endnote 5x? Here is the message I get when I try “Data error. Please verify that no other user has this library open simultaneously with write access”. I know this makes since to get this error message but is there a way around it?

Because of the nature of Dropbox and the .DATA folder, it is currently recommended that you not use a file in the drop box, but use the dropbox to save a compressed library and move it to the local machine and recompress it if changes and drop it back.  (dont shoot the messenger!)  – I know they are working on a solution to this. 

Sharing a group of references through EndNote Web is another alternative.

 - Mathilda, the EndNote team