Bug ? Script download problem if user abort download

I have a download script on IIS 5 and Php 4.0.6 as cgi: $filename=PDF_PATH.$codfile.".pdf"; $fp=fopen($filename,"rb"); if ($fp) { header("Content-type: application/octet-stream\n" ); header("Content-transfer-encoding: binary\n"); header("Content-length: " . filesize($filename) . "\n"); header("Content-disposition: attachment; filename=".$codfile.".pdf\n"); $contents=""; while (!feof($fp)) { $contents .= fread($fp, 1000); } fclose($fp); print($contents); the script works very well. But if the user press the Cancel button in the browser download dialog, the current php process stop working. If i try to load a new page another php process is spawned, but do nothing. If i look in the task manager i see my php processes running (without doing nothing). When the timeout occurs the php engine continue wotking correctly. If i close the browser while php is hang, and i start a new browser session the php pages are correctly processed. I try several other methods : readfile,fpassthru,fread($fp,filesize),read and print a small chunks of data, but nothing change, when the user abort the download operation the php hang. This behaviour is very similar to the following bug: http://bugs.php.net/?id=8215 , that appears to be closed -- Gianluca Morello Editek S.r.l. http://www.editek.it Via Vitruvio, 43 - Milano Mail: gianluca.morello@editek.it Tel. : 02-671166208 Fax : 02-67493766