What about using Amazon AWS, here is an article which may give you ideas on how 
to achieve your goal
http://developer.amazonwebservices.com/connect/entry.jspa?externalID=1633

There is also the S3Fox plugin which does resemble the process you're after.
http://s3fox.net/ 

Norman



--- On Sun, 21/6/09, Alex Sadovsky <[email protected]> wrote:

> From: Alex Sadovsky <[email protected]>
> Subject: Re: [Wt-interest] Multiple file transfer
> To: [email protected]
> Date: Sunday, 21 June, 2009, 7:33 PM
> That would work if client could untar it
> on the fly. The server is supposed to serve huge files so it
> will be an additional headache for the user to first
> download an archive then unpack it. Moreover, he will not
> see per file progress and have per file control over
> download queue.
> 
> 
> 2009/6/21 Wim Dumon <[email protected]>
> 
> What about creating the archive on the fly? This means
> don't have to
> 
> store the archive before transmitting it. I'm thinking
> about using
> 
> popen to a gnu tar process...
> 
> 
> 
> Wim.
> 
> 
> 
> 2009/6/21 Alex Sadovsky <[email protected]>:
> 
> > Unfortunely, zipping
> won't work for me as the files are supposed to be
> 
> > really large.
> 
> >
> 
> > On Sun, Jun 21, 2009 at 6:43 AM, 宋志民 <[email protected]>
> wrote:
> 
> >>
> 
> >> this maybe needs two steps:
> 
> >> 1. gzip the selected files into the tmp dir
> 
> >> 2. autostart the download function when
> "download" button clicked
> 
> >>
> 
> >> I think this will be done by self.
> 
> >>
> 
> >> Regards
> 
> >> zhimin
> 
> >>
> 
> >> 2009/6/20 Alex Sadovsky <[email protected]>
> 
> >>>
> 
> >>> Hello!
> 
> >>>
> 
> >>> I need to implement multiple file upload and
> download in my webapp.
> 
> >>> Something like this: the user sees a list of
> files with a checkbox
> 
> >>> beside each file. Then he checks some files,
> enters a directory path
> 
> >>> in his local file system and presses the
> "download" button. The
> 
> >>> browser should download all selected files to
> the specified directory.
> 
> >>>
> 
> >>> Does anybody know if Wt can help me to make
> such an application or if
> 
> >>> it's even possible with modern web
> technologies?
> 
> >>>
> 
> >>> Thanks.
> 
> >>>
> 
> >>>
> 
> >>>
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