Need a Remote File System for my desktop application. Forum experiences and suggestions.

Hi All,<p><pre><code> I am working on an desktop application idea for which I need a remote file system. Each user should be able to mount it as a shared drive on windows and similarly on unix. Ideally I want to mount when my application is run (developed using Eclipse RCP ) and unmount it when closed. </code></pre> I have searched on internet for some solutions but frankly speaking I don't know what am I supposed to search. I found several products like samba, webdav, jcifs, amazon s3. Obviously I would need quotas , sharing etc to some extent.<p>If possible I don't want to build anything from scratch. I would like to use something off the shelf? May be like amazon s3 or Nivanix. I know that amazon/nirwanix does not provide ability to mount as shared drives.<p>I seem to find some kind of webdav to s3 adapter etc.<p>My question to the forum is how do a typical remote filesystem is implemented? What technologies are used? What are your experiences in this regard.