you have tried in html is correct but with in cgi form you must ensure did you refer the path. If you getting Internal server error. You just properly install cgi module into your system. and in header perl file give this

#!C:\Perl5.8.4\bin\perl5.8.4.exe  # perl installed exe path
use CGI qw(:standard);
use CGI::Carp qw(warningsToBrowser fatalsToBrowser);
[download]

And install those modules before you try and see what is error showing in the browser. Before see it in browser you run as like perl file. If no error in that you may proceed the above procedure.

Regards,
Gube