Based on what I can glean from this thread as to your intentions I think what you are after is Archive::Zip to create the archive and then you can send that archive to the browser in binary mode with the correct HTML headers being set. This is untested, but here is a sniglet of code that I think should work for you:

#!/usr/bin/perl -w
################################3

use strict;
use warnings;
use diagnostics;
use CGI;
use Archive::Zip;

my $cgi=new CGI;
print $cgi->header("Content-type: x-applicaition/zip\n\n\n");

my $arch = new Archive::Zip;
my $member = $arch->addFile('myfile.html');
binmode(STDOUT); # THis is suspect, I haven't done this for a while...
+.
$arch->writeToFilehandle(\*STDOUT);
.
.
.
.
[download]

The only part I am hazy about is the binmode part since I haven't done that in a while. At any rate TIMTOWTDI.