Description:
------------
Under php-4.3.10 this method works just fine. But with php-4.4.1 and php-4.4.2 the application crashes(mostly MS Word, because I try to open rtf documents and this is the default application).
The script uses header function to get the document from server.

Reproduce code:
---------------
to get the file:
<a href="fileopen.php?folder=subfolder&filename=file.rtf">file.rtf</a>

fileopen.php:
<?
	if(!isset($_GET["folder"])) $_GET["folder"]=NULL;
	if(!isset($_GET["subfolder"])) $_GET["subfolder"]=NULL;
	if(!isset($_GET["id"])) $_GET["id"]=NULL;
	if(!isset($_GET["filename"])) $_GET["filename"]=NULL;
	if($_GET["folder"]=="somatie")
	{
		$name="../".$_GET["folder"]."/".$_GET["filename"];
	}
	else
	{
		if($_GET["subfolder"]!=NULL)
			$name="../".$_GET["folder"]."/".$_GET["subfolder"]."/".$_GET["id"].str_replace("*","&",$_GET["filename"]);
		else
			$name="../".$_GET["folder"]."/".$_GET["id"].str_replace("*","&",$_GET["filename"]);
	}
	$file_extension=strtolower(substr(strrchr($_GET["filename"],"."),1));
	switch($file_extension)
	{
	case "pdf": $ctype="application/pdf"; break;
	case "exe": $ctype="application/octet-stream"; break;
	case "zip": $ctype="application/zip"; break;
	case "doc": $ctype="application/msword"; break;
	case "csv":
	case "xls": $ctype="application/vnd.ms-excel"; break;
	case "ppt": $ctype="application/vnd.ms-powerpoint"; break;
	case "gif": $ctype="image/gif"; break;
	case "png": $ctype="image/png"; break;
	case "jpeg":
	case "jpg": $ctype="image/jpg"; break;
	case "mp3": $ctype="audio/mpeg"; break;
	case "wav": $ctype="audio/x-wav"; break;
	case "mpeg":
	case "mpg":
	case "mpe": $ctype="video/mpeg"; break;
	case "mov": $ctype="video/quicktime"; break;
	case "avi": $ctype="video/x-msvideo"; break;

	//The following are for extensions that shouldn't be downloaded (sensitive stuff, like php files)
	case "php":
	case "htm":
	case "html":
	case "txt": die("<b>Cannot be used for ". $file_extension ." files!</b>"); break;

	default: $ctype="application/force-download";
	}
// send the right headers
	header("Pragma: no-cache");
	header("Expires: 0");
	header("Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0");
	header("Content-Description: File Transfer");
	header("Content-Type: $ctype");
	header('Content-Disposition: attachment; filename="'.$_GET["filename"].'";');
	header("Content-Transfer-Encoding: binary");
	header("Content-Length: ".filesize($name));
// dump the picture and stop the script
	@readfile($name);
	exit;
?>


Expected result:
----------------
The file should be opened with the default application.

Actual result:
--------------
Default application crashes.