Good morning, I run into same trouble. Kind regards hi oli, i can confirm this if i use following command. one download one 500 [download.cmd] "C:\Program Files (x86)\GnuWin32\bin\wget.exe" --limit-rate=40000 http://127.0.0.1/index.php did you find any solution? regards Hi List, i installed a blank Windows Server 2012 Standard, added Role IIS & Feature CGI extracted 5.5.1 VC11 x86 Non Thread Safe to c:\Program Files (x86)\php installed vcredist_x86.exe added Handler Mappings in IIS Request path: *.php Module: FastCgiModule Executable: c:\Program Files (x86)\php\php-cgi.exe Name: PHP via FastCgi Added 2 files to C:\inetpub\wwwroot index.php & movie.mpg (6MB) Content of index.php <?php $track = "movie.mpg"; if (file_exists($track)) { header("Content-Type: audio/mpeg"); header('Content-Length: ' . filesize($track)); header('Content-Disposition: inline; filename="movie.mpg"'); header('X-Pad: avoid browser bug'); header('Cache-Control: no-cache'); readfile($track); exit; } else { header($_SERVER['SERVER_PROTOCOL'].' 404 Not Found', true, 404); echo "no file"; } ?> Now every time the index.php is requested i get an error 500 in Webserver log. But file will be delivered sucessfully. Is there a problem with mpg files and readfile(); No difference with 5.4.17, 5.3.27 & Windows Server 2008 R2. I know its very basic, but expected result should be: HTTP-Status: 200 or? phpinfo() will be delivered succesful. Thx + regards oli