With DocSpace you should be able to access the files via Windows Explorer similar to how other programs like ownCloud allow you to.

This would be useful for being able to view and edit documents while offline and have those changes merged to DocSpace when back online.

Also it would make things like just attaching a document to an email much easier. Currently to attach something to an email I have to download the document from DocSpace to my computer and then attach that download to an email.