Http Chunked Transfer or Server Push- Struts 1

Hello all,

I'd like to allow a user to download multiple files in one servlet request from my Struts 1 application. (And no, I can't do a zipped file!) I've read a bit about http chunked transfer and server push, but I haven't been able to make this work in my application so far. I'm basically implementing "DownAction" as shown here:

http://thinkstruts.blogspot.com/2008/06/how-to-do-multiple-files-upload-and.html

(Also shown here under class "Pushlet": http://engrm.com/blogometer/2005/11/17/pushlets-in-java/)

Does anyone know if Struts is preventing this from working, or is there really no way to download multiple files in one servlet request?

Thanks in advance for your help!
Jamie