print "Content-Disposition:attachment;filename=file.txt\n";
print "Content-type: application/octet-stream\n\n";

##</code><code>##

<a href="script.cgi/filename.txt?downloadid=1">download the txt file</a>

##</code><code>##

-- 
Joost       downtime n. The period during which a system
            is error-free and immune from user input.