I've deployed CGIs on IIS, and, unless your script is going to be doing something much more sophisticated than printing a page,

print $q->header(     -nph=>1,         #unfortunatly IIS
                      -status=>'200 OK',
                      -type=>'text/html'),
                                         ^--- ;
[download]

can safely be reduced to print $q->header(); Also, notice that you have a comma where you should have a semicolon. (Was this code copy/pasted?)

Also, it's a good idea to get into the habit early of trying to emit syntacticly valid HTML.