my $req = POST ('http://www.environet.gov.on.ca/dwws-app/DWWSApp?cmd=UploadSubmPage.uploadSubm',
                Content_Type => 'form-data',
                Content      => [
                                works_id => '210000586', 
                                lab_id   => '48', 
                                filename => [$FileName]								
                                ]
                );

##</code><code>##

POST http://www.environet.gov.on.ca/dwws-app/DWWSApp?cmd=UploadSubmPage.uploadSubm
Content-Length: 11073
Content-Type: multipart/form-data; boundary=xYzZY

--xYzZY

Content-Disposition: form-data; name="works_id"



210000586

--xYzZY

Content-Disposition: form-data; name="lab_id"



48

--xYzZY

Content-Disposition: form-data; name="filename"; filename="210000586-210001130.txt"

Content-Length: 10760

Content-Type: text/plain

##</code><code>##

Malformed line after disposition: Content-Length: 10760