File download in servlet without download prompt

hi,
I am developing web application using jsp and servlet. with help of this application I am downloding files from server to client machine. it is working....
But my problem is how to avoid the download window while download the files and store the perticular place in the system.
please give suggession.
thanks.

But my problem is how to avoid the download window while download the files and store the perticular place in the system.So that you can install a virus on my system?
There is a reason for the download window popping up and forcing the user to save it to a place of their choosing.

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http://forum.java.sun.com/thread.jsp?forum=54&thread=100793
http://forum.java.sun.com/thread.jsp?forum=33&thread=250668
http://forum.java.sun.com/thread.jsp?forum=33&thread=63282
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File download in servlet without download prompt

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