> This is one of those issues that just can't be solved
> with simple HTTP and HTML.  There isn't a response
> sent to the server to tell it every single download
> was successful (or at least not sent back to the web
> application ... TCP makes sure the last bytes get to
> the other side successfully or an error occurs, but
> the applications on the server side can't tell this or
> at least I don't know how).  Then to make the
> situation more difficult there is no defined event for
> tying into the HTTP process for when a certain
> download has occurred successfully.  So, one has to
> use a download manager of some kind to more easily
> manage things like this.  This could be a signed java
> applet or shockwave file or a COM object (not cross
> platform so I wouldn't recommend that, but you might
> think it's ok if you force IE and windows).  One could
> more easily tell if an upload had finished because you
> at least have a defined form element you can access
> through DOM, get the name, and then monitor the upload
> progress.
> 
> Wade
> 
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Hi,

I agree with Wade about not knowing in Tomcat whether download succeeded or not.
I tried many code and discussed about it in the forum and came to the 
conclusion it is not possible.
(subject was "Last Byte Detection", conclusion was: HTTP is not the good level 
to detect that.)

Good luck,
Nicolas

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